Citizen compressor diver – Seven Star 4-520017Y


Let me introduce to you a beautiful, NOS, vintage compressor style diver that has just the right amount of pure class.

A compressor case is defined by the fact that the rotating bezel is inside the case, under the crystal and it is turned by one of the crowns, rather than directly by hand. Gary, a reader, provided a piece of information about Compressor cases that I would love to share with you:

“These are beautful watches and I enjoyed reading about them but I must correct your assumption that they are compressor watches. Its a common misconception that if a watch has two crowns and an internal bezel, it must be a supercompressor but infact Compressor and Super Compressor watches are defines by the company which made the cases and held a patent for their design. These cases were made by the specialist manufacturer Ervin Piquerez S.A. of Switzerland. No Japanese manufacturer used EPSA Compressor cases. Information about Compressor cases is not hard to find. The link below shows the three types of Compressor case, including the Super Compressor from which your Citizen watches are inspired. True Super Compressors are typically identified by a crossed hatched design on the crowns, a diver helmet logo on the case back or inside the case back, but always, they have the brevet (patent) number on or inside the case back. http://wornandwound.com/2014/03/24/guide-super-compressors/”

NOS means New Old Stock – a watch that was not worn and it is in excelent condition after all this time (45 years old).

citizen compressor diver seven star parawater

Just like the other compressor diver I have presented here : https://vintagecitizenwatches.com/2014/01/18/vintage-citizen-compressor-diver-4-520343-y/, this one is also made in 1969. By contrast, this one has a more classy, elegant appearance.

The case is large, made in polished stainless steel, with a brushed frontal surface. Looking at it from the side, the case seams slender, thick in the middle, and arching down all the way to the end of the integrated lugs. The mineral crystal is slightly domed in order to be better integrated in the overall design. The crystal is secured by a thin, polished, elegant bezel. The sides and the frontal surface are well delimitated by a carefully made polished chamfer. The twin crowns are not signed. One of then, the upper one, turns the bidirectional internal bezel and the other one is connected to the movement. The case-back displays the usual information – material, date of manufacture, model, movement, and parawater. Read about parawater here: https://vintagecitizenwatches.com/2013/12/26/citizen-parawater-citizen-parashock/

The dial is dark-deep black,  very simple but not simplistic at all. Under magnification one can see that a lot of attention was placed into details. The writing is white, also on the black date and the black day wheels. The date is on 3 o clock inside a polished frame and the day is at 9 inside an oval, carefully made window. The only tint of color is the lettering for Sunday.  The inner rotating bezel is also black with white writing. The hour markers are applied with luminous material in the center. The hands are also polished, faceted with luminous material as well.

 Citizen diver Seven Star 4-520017Y

The movement is the usual automatic Citizen calibre 5270, with 21 jewels. The calibre number is engraved, as usual, under the balance wheel.  It is winded by a black rotor that compliments the dial on the other side in a fortunate manner.  It is a common movement used in a variety of models, not only divers making it rather easy to repair with available parts. It is reliable and offers hand winding possibility. The date changes in the second position of the winding crown (first position for winding, third for time setting) but the day changes only by passing midnight with the hands. The corespondent crown for the movement is the one at 4 o ‘clock.

The bracelet is nothing less than a piece of art. I think this is my favorite Citizen design. It is made in solid steel, three thin polished connectors and  brushed large links. It doesn’t get better than this! It has a pleasant tactile feel and a nice weight. One more thing that can not be described into words is the sound of the links touching each other… pure music. The clasp is the usual type, signed Citizen.

Citizen compressor diver - Seven Star 4-520017Y

Al things considered, this is the best diver for a gentleman, ready to be worn at the beach or with a suit during a corporate meeting. Decent water resistance (nor really made for submerging, but good enough for daily jobs) and understated elegance placed together for one of the best Vintage Citizen All-rounder.

Read more about Citizen diving watches here: https://vintagecitizenwatches.com/diver-vcw/

Citizen Recordmaster Sportsmaster Chronograph


Looking back at 1970 I see a world that started focusing it’s attention on automatic chronographs while at almost the same time, the quartz revolution is about to play it’s role, somehow stopping, or at least slowing down, the mechanical movement development.  This Citizen model was introduced in 1967 and was produced for only 5 years.

The Recordmaster is a beautiful piece, a real column wheel flyback chronograph, with a hand winding movement. It counts only up to one minute elapsed time but in such a memorable way!

citizen recordmaster 63-0110

The case is classic, made in stainless steel, 36 mm wide. It has an elegant case, entirely polished. The winding crown is signed “CTZ” and the pushers are polished too. There is a nicely chamfer edge that add further beauty to the overall design, very elegant and yet a real sport chronograph. The caseback is polished with the usual markings (parawater as it was made prior to ’73). The acrylic crystal sits above the case and has a flat surface. I love the way it bend the light at the edges!

The dial is absolutely stunning! Plain black, with simple applied polished hour markers. The hands are polished too. There is an inner tachymeter for calculating speed. The writing is simple, white. Beautiful contrast white on black.  It looks like chalk writing on a blackboard. The date wheel is white with black numerals. There is also luminous material that, 40 years later, is in wonderful condition. There is one more dial color version that is white with black writing. (I added pics of the white dial model, found on internet – rakuten)

citizen recordmasterThe movement is Citizen calibre 5702 with 21 jewels. It beats at a slow rate, half the speed of the fastest Citizen Leopard movements, at 18,000bph.  It is the first chronograph and the only hand winding chronograph movement that Citizen produced. There is also an automatic one with a two variations: 8100A and 8110A. All of the Citizen chronograph movements are flyback and so is this one. The date is not quick set but changing by advancing the hour hand.

The bracelet is original to this model (most of the Recordmaster I have seen are on replacement straps). Not much to say about it. It has a combination of polished and brushed surfaces, a signed sandblasted clasp and perfectly fitted end links. It is tapering starting from the case towards the stainless steel clasp.citizen recordmaster chronograph 63-0110Update: A few more versions I found (some of them are my pictures, some are from online sellers and fellow Citizen collectors) are these:

1 – Black dial, red chronograph hand.

recordmaster citizen watch

2 – Black dial with the tachymeter scale starting from 1000, black hands and a white, square luminous tip, chronograph hand. Reference 4-570091T Citizen Recordmaster recordmaster citizen black hands

3 – The first version made is the following one (see the details on the caseback):first black citizen recordmaster

4- A special case design, with the original bracelet, white dial Citizen Recordmaster:white dial citizen recordmaster vintage

5 – A rare Kyoto Recordmaster (the only one I saw and also had) version, made for French market:

citizen kyoto recordmaster

Here is the awesome Recordmaster collection of my friend John from Australia:

Update Nov 2017 – Citizen Museum in Tokyo has one on display that has the “Sportsmaster” dial print rather than the Recordmaster.

Conclusion: Beautiful, timeless design. A rare piece that has its specific place in any Vintage Citizen Watch collection. This is the perfect combination of simplicity combining in perfect harmony elegance and sportiveness that (as far as I know so far) came in 4 dial variants plus the additional different RallyCustom one – read about it HERE.

For the VIDEO of this watch visit:

https://vintagecitizenwatches.com/2014/03/12/video-citizen-recordmaster-chronograph-63-0110-2/

Read more about automatic Vintage Citizen Chronographs here:

https://vintagecitizenwatches.com/chronograph-vcw/

Vintage Citizen Alarm Date (4H) – ALDS51301a-y


Beautiful watch, elegant design, and excellent, close to mint, condition. The sound of this watch is loud and powerful. The bracelet is comfortable and… let’s take it one step at a time.

For now… enjoy the video:

For more information about this watch go to:

https://vintagecitizenwatches.com/2014/01/04/vintage-citizen-alarm-date-alds51301a-y/

Seven Star Citizen 100m diver 67-5776, APSS-52904 Y


This was one of the last years (1971) that Citizen used the term “parawater”. Unfortunately it came to an end and this particular model was one of the last parawater divers. It marked the end on an era. What can I say, I just love this Seven Star – Vintage Citizen Diver!

citizen diver 67-5776It was made in four dial color variations: black, blue, silver and orange, my favorite is the orange. This era was so colorful and full of life and it is also true when speaking of Citizen watches.

Update 2018 April:

Kim, aka WVE from The Seiko and Citizen watch forum, was king enough to let me use his pic so you can enjoy them. Thanks Kim, lovely collection you have there! 😉 Blue, Silver, Orange and Black dial!

The case is the well known Citizen cushion shape having a diameter of 44 mm without the crown. It is made in stainless steel and so is the caseback and the bidirectional frictional type bezel. The bezel insert is aluminum? painted black with white numbers and markers. At 12 there is a luminous dot inside an upside down triangle. The entire case is polished, except for the frontal surface that has a circular brushed finish. The acrylic crystal is raised and flat. I love the way the light  bounces back from underneath an acrylic crystal! The water resistance is 100m, maybe because the signed CTZ crown is a non screw in type. But… 100m is plenty for normal use.

blue dial citizen diver 67-5776

The dial is made from two distinct pieces, glued together; an outer ring is sitting higher than the dial itself and has hourly numerals from 13 to 24. A silver ring delimitates the two surfaces and has minute markers. The lower part has raised polished hour markers with luminous material. The spade shape hands have luminous centers as well. By contrast, the second hand is simple, entirely polished. At 3 o’clock the watch has the day and date display inside a polished frame that connects the two parts of the dial. The usual Citizen logo is at 12 and at 6 it reads: “para 100m water, automatic, 21 jewels”.

citizen 7270 automatic 21 jewels

The movement is the 7270 calibre – simple, reliable, automatic with 21 jewels and beating at 21,600bph. As usual with Citizen, the automatic movement can be hand winded. It has jewel bearings for barrel and a power reserve of 41 hours. It features a quick set date and the day changes from advancing from 20 to 0:30. The sweeping second hand doesn’t hack.

The bracelet is a common Citizen design called bead of rice that fits the case shape really nice. I have seen other designs (see the cool one on my NOS APSS-52904 Y below) but a lot watches found today have nato replacements or rubber straps. Certain leather straps look good on it too. It is easy to find a bracelet or a strap because it has 20mm between the lugs and a look that makes it easy to wear on anything.  

vintage citizen 100m 67-5776

Update 2018 April:

It seems that the models above are export models since the domestic ones, for Japan market, are marked “Seven Star APSS-52904 Y” and have a slightly different dial. I managed to find a NOS one and here it is, also side by side with the orange export version. The case back is also different, and so is the winding crown. Take a look.

And side by side:

Conclusion: Beautiful watch, warm, colorful and full of life.  One of the last “parawater” divers made. A real joy to wear and look at.

Read about other Citizen divers here: https://vintagecitizenwatches.com/diver-vcw/

Read about “Parawater” here: https://vintagecitizenwatches.com/2013/12/26/citizen-parawater-citizen-parashock/

VCW Facebook group page


Facebook is a great place to meat great people with really great watches. 🙂 This is why we have created the Vintage Citizen Watches official group page. Check it out and add yourself and your friends! Here it is: https://www.facebook.com/groups/vintagecitizenwatches/354822734656228/?comment_id=354922047979630&notif_t=like citizen facebookThank you for looking!

Vintage Citizen compressor style diver 4-520343 Y


Vintage Citizen divers  – this time a compressor style. And what is better than one diver? Two divers, or even three! 

A compressor case means  that the bezel is not outside the case, but actually inside the case, under the crystal. It is not operated directly but with the turn of one of the two crowns. As Gray showed in the comment of this post these are not actually compressor cases, but actually compressor style inspired.

“These are beautful watches and I enjoyed reading about them but I must correct your assumption that they are compressor watches. Its a common misconception that if a watch has two crowns and an internal bezel, it must be a supercompressor but infact Compressor and Super Compressor watches are defines by the company which made the cases and held a patent for their design. These cases were made by the specialist manufacturer Ervin Piquerez S.A. of Switzerland. No Japanese manufacturer used EPSA Compressor cases. Information about Compressor cases is not hard to find. The link below shows the three types of Compressor case, including the Super Compressor from which your Citizen watches are inspired. True Super Compressors are typically identified by a crossed hatched design on the crowns, a diver helmet logo on the case back or inside the case back, but always, they have the brevet (patent) number on or inside the case back. http://wornandwound.com/2014/03/24/guide-super-compressors/” – Is the comment from Gary. Thank you for the clarification!

Citizen Diver compressor 4-520343 Y

This particular model is one of the early Citizen divers, with compressor style case.  I have seen it in black dial, red, blue and silver dial. The red dial is one of the most beautiful dials ever. Actually is more a burgundy red. The blue is awesome in different lightning conditions, the black is subtle and classy and the silver is  really special.

The case is larger than the usual divers of that era, but similar with other vintage Citizen. It is about 44mm, with a brushed frontal surface, with a radial pattern. The sides are polished. The lugs are well integrated in the overall design, with the same finish as the case. The two crowns are protected because the 9 o clock side (flat) and the 3 o clock side (angled) are not symmetrical, so the crowns are not sticking out a too much. They are signed “C”.  The outer bezel that keeps the domed acrylic crystal in place is polished. The crown at 2 operates the inner bidirectional bezel, and sometimes is very easy to move it by accident so i prefer the models with an outer bezel. The crown at 4 winds the watch and sets the time and sometimes is hard to operate.

The dial is  the best part of this watch. The red one is gorgeous, the blue is beautiful, the black is classic but the silver is not really at home for this model (IMHO) but it is rare and special.. In fact all the colors have a matching rotating bezel except for the silver one that has a black bezel. The black dial is flat, matte. The red and the blue one have thin black longitudinal stripes so the color gets a little  darker. All of them have the cross hair lines. At 12 they have the polished applied Citizen logo and on 6 it is written “water 100M proof” “automatic” “21 jewels”. It is very interesting the fact that the dial is marked waterproof (sometimes parawater) and the caseback parawater. This is due to the fact that it was manufactured in an era when Citizen transitioned from parawater to water resistant. Also some of them were designated for export so a different marking was needed than the ones for domestic market. Read about this here:  https://vintagecitizenwatches.com/2013/12/26/citizen-parawater-citizen-parashock/ The ones that have “waterproof” on the dial are for export. At 3 we have the day and date window, in a divided frame. The Sundays are in red lettering, the rest are black. The hour markers are trapezoidal, applied with a polished frame, jus as the date frame. The hands are the usual “Mercedes” type and the second hand has the luminous tot at the very end of it. One rare model has straight hour hand, matching the minute one. For a long time I thought it might not be original but thanks to Pawel I now saw the model in real life and it is for sure 100% original. I also saw one picture from a German catalogue on Stephen‘s blog who says: “There was also a version of this model, maybe only an export version, that had a straight hour hand, rather than the ‘Mercedes’ type. At the moment this image, from a German brochure (with credit to ‘Axel’ on the old SCWF site) is the only one I have seen.” Thanks Pawel for the pictures of the straight matching hands one! Great watch!  After 40 years, the luminous material still glows beautifully at night. The rotating bezel is rather shiny, with a luminous dot inside a triangle at 12, and painted numbers every 10 minutes. The rest of the minutes are dots and every 5 minutes we have a rectangle. Great quality for this bezels. You have to see them in real life to fully appreciate them!

citizen 4-530343Y compressor

Here it is another straight hour hand piece, a black dialed one. Thank you Christian for the pictures!

compressor diver vintage citizen

And a pic that I like:

citizen compressor diver vintage

The movement is the automatic Citizen calibre 5270, with 21 jewels, (and a black rotor that I like a lot). It is a common movement used in a variety of models, not only divers. This means that replacing parts are easy to source.  It is reliable and offers hand winding possibility. The date changes in the second position of the winding crown (first position for winding, third for time setting) but the day changes only by passing midnight with the hands. The operating crown for the movement is the one at 4.

The strap I’ve seen is most of the times a replacement one. Sometimes I have seen them on Citizen or replacement stainless steel bracelet, sometimes on rubber, nato or even leather. They can take any type you want to throw on them. I keep them on matching nato straps, red for red, black for black. This way they are really comfortable and I thing a Nato suits them well. The width at the lugs is 20mm.

automatic Citizen 5270Conclusion: Just as most Citizen divers – wonderful, easy to wear, a pleasure to look at, modern and vintage at the same time… timeless beauty!

Read abut my favorite Citizen diver here: https://vintagecitizenwatches.com/2013/12/24/citizen-automatic-diver-150m-52-0110/

Vintage ladies Citizen watch 64-4838


It is time for a ladies Citizen watch! 

Another NOS watch, ready for wearing, 40 years after it’s birth date. (it was made in July 1972). I wonder why did it take so long for such a beautiful watch to enhance the beauty of a woman’s wrist? Maybe it waited for the right owner?

vintage Citizen ladies watch 64-4838

The case is rather a small cushion shaped one, made in stainless steel, with a snap on, flat, brushed caseback. It has integrated lugs, with a brushed frontal surface.  The sides are polished. The acrylic crystal is flat, but sitting higher than the case. I love the way it gives warmth to the entire watch. The silver metallic overall appearance needed something soft, as the case design and the worm acrylic crystal for counterbalance. The crown is signed “CTZ” as expected. Another feature I like about this watch is the fact that it is Parawater (read about it here: https://vintagecitizenwatches.com/2013/12/26/citizen-parawater-citizen-parashock/ )

The dial is silver, simple yet elegant, with applied polished hour markers, Citizen logo and date frame. Each hour is also marked with a luminous dot (except for the one at 3 o’clock where the date is). The hour markers are “T” shaped in sectional view. The 3 hands, with a sweeping second hand, are polished and the hour and minute hands have luminous material that is very bright after 40 years. The writing is black, thin, reading “automatic” and “28800 21 jewels”. The entire dial has a brushed pattern in the same direction as the case, caseback and bracelet.  

vintage Citizen ladies watch 64-4838The movement is an automatic with hand winding capability, Citizen calibre 6900. It has a power reserve at about 38 hours, beating at 28800 bph. The date can be changed in an interesting way, by pulling the crown. It is a quickset mechanism. With the crown in time setting position pulling and releasing the crown will advance the date by one day. Each pull is one day.

The bracelet is stainless steel, with full links and connectors made from folded steel. It is tapering from the case towards the clasp. The clasp is also signed, longitudinally “citizen”. The entire bracelet is brushed except the clasp that is satined with polished sides. The sides and underside ot the bracelet is also polished.

Citizen vintage ladies automatic watch

Conclusion: Such a beautiful watch! So elegant, so delicate, so understated! One of the last years (maybe the last) of “Parawater”.  Maybe it looks nice and it is a beautiful jewelry but also a well made timepiece.

Vintage Citizen Alarm Date – ALDS51301a-y


Starting 2014 with a 1968 Citizen Alarm Date – model ALDS51301a-y.

This is, again, an alarm Citizen, but in in an entirely different presentation.

citizen alarm date alds51301a-yBeautiful watch, elegant design, and excellent, close to mint, condition. The sound of this watch is loud and powerful. The bracelet is comfortable and… let’s take it one step at a time.

The case has a classic shape, round, with nicely shaped lugs, not too thin, not too thick, following the shape of the wrist. The caseback has a flat surface but it is raised to integrate the movement. Due to the curvature of the lugs the watch sits comfortable on the wrist. The caseback snaps into a certain position because it needs to be in a unique place so the alarm will interact as it should, with the pin attached to the inside of it. The place where the pin is, is also visible on the outside. There are no crown guards to interfere with the overall case design. The twin crowns are of a consistent size, easy to operate, signed “CTZ”. One of the main visual attractions is the fluted bezel that compliments the design of the watch. The crystal is made of domed acrylic with a magnifier at 3’o clock for a better view of the date.

The dial is a stunning sunburst pattern grey that, depending on the lighting conditions, displays many shades ranging from dark grey (almost flat black) to light, shinny, bright grey. The hands are polished, the hour and minute hands are with green luminous material. The alarm hand is shorter with a triangle tip. The dots for the alarm hours are painted on the dial with luminous material as well. There are small lines every 15 minutes but only the hourly ones are luminous. The baton markers for the main hours are raised, applied and polished. They are faceted for a better legibility. The writting on the dial is thin, white, painted. It reads: “4H” (this is for 4 hands) “Citizen Alarm Date” and on the lower part ” Para 40 meter” and “21 jewels”.  The date wheel is white with black digits.

citizen 3102 alarm dateThe movement is the USSR calibre AS 1475 based Citizen alarm.  This is the calibre hand winding 3102 (date), 21 Jewels, 18000 bph. The crowns are one for the time and the one for the alarm. The crown at 2 o’clock in first position is winding  the alarm and the alarm is deactivated. If you pull it in the second position you can set the alarm (counterclockwise) and the alarm is activated. Pressing it while the alarm is ringing will stop it. The crown at 4 will wind the watch and pulling it out will set the time. The alarm will ring for 13-16 seconds. The date is set by changing 22-24h. The movement has a power reserve of about 50 hours and it runs great if winding it once a day. It is Parashock.

The bracelet is (as the entire watch) made of stainless steel. It has the most comfortable design ever – beads of rice. The central part is polished and the side links are brushed. As for the clasp – it is the other way around, the central part is satined and the lateral in polished. The clasp is signed – “Citizen”.

citizen alarm date alds51301a-yConclusion: Beautiful watch, comfortable, elegant design. It has a loud sound and a pleasant design. Such a beautiful vintage time piece!

For a VIDEO of this watch (with alarm sound) go to:

https://vintagecitizenwatches.com/2014/02/17/vintage-citizen-alarm-date-4h-alds51301a-y/

Citizen Parawater – Citizen Parashock


The term “Parawater” was the one used by Citizen to describe that the watch was water resistant.

In 1959 the company produced the first Japanese water-resistant wrist watch. This was the “Citizen Parawater”. It was powered by the Citizen Cal. 920(2B). Soon after, the Parawater completed two trans-Pacific tests and one in the Sea of Japan. The result, needless to say, was positive.  As time passed Citizen was growing as a company and exported more and more watches, so the term “Parawater” was changed to the universally recognized “Water resistant” somewhere around 1970-1973.

Read more about Citizen diving watches here: https://vintagecitizenwatches.com/diver-vcw/

parawater citizen

The term “Parashock” came to life in 1956 when the company produced the first shock-proof Japanese watch, known as the “Parashock”. So first was the “Parashock” and three years later the “Parawater”.

Even though you have a parashock and a parawater watch, please don’t treat it as a modern Casio G-shock. 🙂

Citizen History from 1918


The Mayor of Tokyo, Mr Shimpei Goto, named the watch “CITIZEN” with the hope that the watch, a luxury item of those times, would become widely available to ordinary citizens and be sold throughout the world. He got this right.

shokosha

The official table (from official Citizen website): 

Year Month Event
1918 3 Shokosha Watch Research Institute established, the forerunner of Citizen Watch Co., Ltd.
1924 12 First pocket watch completed.
1930 5 Citizen Watch Co., Ltd. established. Yosaburo Nakajima appointed president.
1931 6 First wrist watch completed.
1936 5 Tanashi Factory constructed.
1941 7 Production of machine tools begins.
1945 10 Shinji Nakajima appointed president.
1946 3 Eiichi Yamada appointed president.
1949 6 Citizen Trading Co., Ltd. established.
1952 3 First Japanese-made watch with a calendar introduced.
1953 3 Rhythm Watch Co., Ltd. becomes an affiliate.
1955 12 Export of wrist watches begun.
1960 3 Import-export agreement concluded with the U.S. Bulova Watch Co.
Technical assistance agreement with India.
1964 8 Technology research laboratory established.
12 Citizen Business Machines established.
1965 3 Production of business machines begun. (Adding machines, camera shutters)
10 Office opened in former West Germany, start of full-fledged exports to Europe.
1966 3 First Japanese-made electronic watch “X-8” introduced.
1970 3 CNC automated lathe “Cincom” developed.
1971 6 Precision Machinery Division established.
1976 3 Production of quartz oscillators begun.
1978 2 Head Office moved to Shinjuku Mitsui Bldg. in Tokyo.
1980 6 Industry’s first microcomputer controlled line impact printer introduced.
1981 6 Rokuya Yamazaki appointed president.
10 Systems and Peripherals Division established.
1982 9 Special Sales Division established, full-fledged sales of watch components started.
1983 3 Chip LED lamp CL Series developed.
5 IC sensor electronic thermometer introduced.
1987 6 Michio Nakajima appointed president.
1990 1 Citizen of the Year annual award established.
1992 2 Acquired German machine tool company, Boley GmbH.
1993 5 World’s first multizone “Radio-Controlled Watch” introduced.
1996 4 Solar-powered Eco-Drive received the Eco Mark the first for a watch.
1997 6 Hiroshi Haruta appointed president.
2001 3 Head Office moved to Nishi-Tokyo.
2002 3 Sales of white LED as a backlight for color LCDs started.
6 Makoto Umehara appointed president.
2003 6 World’s first full metal case radio-controlled watch with built-in antenna introduced.
2004 1 Implemented Citizen Code of Conduct.
10 Merged with Citizen Trading Co., Ltd.
2005 4 Citizen Systems Japan Co., Ltd. established.
10 Five consolidated companies (Citizen Electronics, Miyota, Cimeo Precision, Sayama Precision Industries, Kawaguchiko Precision) become wholly owned subsidiaries. Names of Citizen Group companies changed.
2007 4 Company name changed to Citizen Holdings Co., Ltd.
2008 4 Mitsuyuki Kanamori appointed president.
7 Citizen Miyota Co., Ltd. and Citizen Finetech Co., Ltd. merge.
Citizen Finetech Miyota Co.,Ltd. established.
10 Miyano Machinery Inc. becomes a consolidated subsidiary.
2011 4 Citizen Machinery Co.,Ltd. and Miyano machinery Inc. merge.
Citizen Machinery Miyano Co., Ltd. estabilished.
2012 4 Toshio Tokura appointed president.

Source: http://www.citizen.co.jp

Screen Shot 2013-12-26 at 11.29.10

And a few additions from here: http://forums.watchuseek.com/member.php?u=15164

The forerunner to what we now know as The Citizen Watch Co. Ltd., began life in 1918 under the name Shokosha Watch Research Institute. Buoyed on by an ambitious Mayor who demanded that the Shokosha-Watch Institute should have a bearing on all citizens, in so far as “people appreciated and benefited from the institute’s results”. Prophetic words indeed – from this statement, the seeds were sown that would help produce the world’s largest watch manufacturer.

1920’s

In 1924, the first pocket watch to bear the Citizen moniker was produced.

One of these first products produced by the company was purchased by Emperor Showa, Prince Regent at the time (Emperor Taisho era).

1930’s

In 1930, Yosaburo Nakajima laid the foundations of the Citizen watch empire.

In 1931, a 10½ ligne caliber is in production, followed in 1935 by an 8 ¾.

1936 saw the company expand beyond the boundaries of Japan, exporting watches to many parts of Southeast Asia.

1940’s

In 1940 a 5 1/4 ligne caliber was introduced. During World War Two, Citizen moved their production facilities to a small town 200km from their former location in Tokyo. The company manufactured many components, amongst which were chronometers and igniters for military use.

1949 saw the creation of The Citizen Trading Company. This entity controlled the distribution and marketing of Citizen watches throughout the world.

1950’s

In the early part of 1950’s, Citizen completed Cal. 960(M), its first 6 beat caliber with 17 jewels, and Cal. C, Japan’s first men’s wrist watch fitted with date display known as “Citizen Calendar”. In 1953, Citizen acquired a clock manufacturer, The Rhythm Clock Co. (currently named “The Rhythm Watch Co., Ltd”), as an affiliated company.

1956 was a momentous year for the brand. The company produced the first shock-proof Japanese watch, known as the Parashock.

In 1958, the company produced its first automatic-winding wrist watch “Auto” fitted with Cal.3KA, and Japan’s first manual winding alarm caliber with 19 jewels, Cal.980(A). Also the introduction of “Citizen Deluxe” fitted with Cal.920, Citizen’s first caliber with central seconds, proves a hit with the watch buying public, with sales of over 100 million pieces.

In 1959, the company produced the first Japanese water-resistant wrist watch, the “Citizen Parawater”, Cal. 920(2B).

1960’s

At the start of the 1960’s, the Parawater completed two trans-Pacific tests, as well as one in the Sea of Japan – all passed with flying colors.

1960, Citizen signed an export/import agreement with USA’s Bulova Watch Company.

1962 saw the company introduce an officially certified chronometer and the world’s thinnest men’s wrist watch with center seconds, the “Diamond Flake”, Cal.0700.

The year 1963 heralded the introduction of the Quartz-transistor clock.

In 1964, pursuing a diversification strategy, Citizen founded the Citizen Office Machine Co., Ltd. (today’s Japan CBM Corporation).

In 1965, Citizen started producing office equipment and precision manufacture components.

In 1966, Citizen introduces Japan’s first electronically regulated balance wrist watch known as “X-8” or “Cosmotron”.

1967 saw the company put the world’s first quartz transistor clock into the market.

1970’s

The 70’s were another prolific decade for Citizen, and also the beginning of the company’s move towards the quartz technology that dominates its current output. However, Citizen did not completely move away from mechanical movements during this decade.

1970 saw the introduction of the world’s first Titanium cased watch “X-8 Chronometer”, followed by a tuning fork caliber a year later.

In 1972, Citizen evolved the 60’s “Sports Master”. They developed an brand new automatic chronograph, named the “Easter Rabbit” – commonly referred to by English speaking collectors as the “Bullhead” (or the “Panda” in Japan). The “Easter Rabbit” showcased calibre 8110, which included a zero-position reset mechanism fitted with a shock absorber.

In 1973, the company launches its first quartz wrist watch, fitted with Cal. 8810.

During 1974, Citizen signals its intent to seriously pursue quartz technology by introducing a quartz movement, Caliber 8600EX, fitted with Japan’s first stepping motor mechanism*.

By 1975, the launch of the now legendary Crystron Mega Quartz left the watch world with little, if any, doubt about where Citizen were heading as an brand. Fitted with caliber 8650, generating a frequency of 4,194,304Hz, it is still to this day one of the world’s most accurate (and priced at approx. Y15,000,000 one of the most expensive) wrist watches ever offered for public sale.

In 1975, The Citizen Watch Co. of America Inc. is established.

In 1974, solar powered technology is first introduced, not to mention the first Japanese LCD technology watch.

1978 saw the company introduce a 0.98mm thick quartz caliber, “Quartz 790”.

By 1978, the company moves to the Shinjuku Mitsui building in Tokyo, followed in November of that year with the release of the Citizen Quartz Digi-Ana, fitted with caliber 8900 – it featured a combination of digital LCD and analogous time indication.

1980’s

By 1980, Japan had become the world’s largest producer of watches and watch movements. November of this year brought the release of ladies wrist watches fitted with the world’s smallest volume movement, “The Exceed Gold”.

Towards the end of 1981, Citizen released their 1300m Professional Diver’s watch. At the time, it was the world’s most water resistant watch available for public use.

By 1982 the diversification that started in the 1960’s, saw Citizen produce the world’s largest Neon-Light advertisement installed in Hong Kong.

1985 saw the release of the world’s first watch fitted with a depth gauge, the “Sport Depth Meter”.

By 1986, Citizen becomes the world’s largest single manufacturer of watch movements.

In 1987, the company introduced the “Voice Master” or “Voice Memo” (in Japan)”, VX-2, the first wristwatch with voice recognition.

1990’s

The 1990’s were almost as significant and prolific in terms of world’s firsts than the 70’s were for the company. In the early 1990’s Citizen launched the Analog-Aqualand, the first quartz watch with an analog depth gauge.

In 1992 Citizen became the official timekeeper of the America’s Cup yacht race.

In 1993, Citizen introduces radio-controlled watches to the market place.

1995 saw two significant additions to the world of Horology: “The Citizen” was released in May, backed with a ten year factory warranty and +/- 5 second a year accuracy; and November saw the introduction of Eco-Drive power generating technology, which quickly became Citizen’s number one seller.

1996 was another busy year. Citizen’s Eco- Drive technology was awarded the first “Eco-Mark”, an officially certified Japanese award for environmental protection. In July Citizen released the world’s thinnest solar cell equipped movement, only 3.14mm thick.

In 1997, Citizen launches the “Exceed Eco-Drive” to the Japanese market, featuring accuracy of +/- 10 seconds per year, followed closely by “Eco-Drive Signature Technology”, which corrects time differences when traveling between time zones.

1998 saw the introduction of the “Promaster Eco-Drive Aqualand” or “Promaster Aqualand Eco-Drive Analog Depthmeter” (in Japan) , the world’s first solar powered diver’s watch with an electronic depth gauge. In October, Citizen unveil the world’s smallest quartz movement, fitted to the Exceed Lady’s Eco-Drive.

By the end of the millennium, Citizen introduced “Promaster Eco-Drive Super Tough”, which can survive/withstand/resist the shock of an impact hammer 5 times more than non para-shock watches.

2000’s

Thus far, during the decade of 2000, Citizen has:

– Relocated its headquarters to Nishi-Tokyo City;
– Founded the Lead-Free Committee;
– Founded the Eco-friendly product subcommittee and green purchasing subcommittee;
– Developed the world’ slimmest radio-controlled watch;
– Introduced automatic time keeping for marathon/ekiden races through the use of IC chips;
– Introduced the Campanola range of High End Quartz watches.
– Merged [with] Citizen Shoji;
– Acquired Miyota Co. Limited as a going concern, which included several small component manufacturing subsidiaries; and
– On January 10th 2008 Citizen acquired USA’s Bulova Watch Company, including all its affiliated brands (Bulova, Caravelle, Wittnauer and Accutron) for US$247 million, making the combined company the world’s largest watchmaker.

*EDIT – Switzerland’s Girard-Perregaux hold the record for the worlds first stepper motor equipped quartz wristwatch.

source: http://forums.watchuseek.com/f9/brief-history-citizen-watch-company-175421.html
REFERENCES:

Citizen Watch Co.
Citizen Watch Co. of America Inc.
History of CSR – Citizen Watch Co. Ltd
Citizen Watch Co. Ltd – Wikipedia
Watches for the World – Uhren Juwelen Schmuck – Author; Gisbert L. Brunner
www.citizen.com.hk/
www.citizenwatch.com

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I would like to thank to all involved in putting together this information and I hope that the amount of known data that will be available will grow constantly.

Read more about the first Citizen here: https://vintagecitizenwatches.com/2014/09/27/citizen-shokosha-pocket-watch/