Citizen Super Jet Auto Dater X case


Super Jet! Wow again! And a “X” case?! Super! 

Some say the best period of Citizen was around 1969, some say it was earlier and others believe it was after 1970. Well.. 1969 was at least an interesting year because Citizen had a lot of cool features intersecting around this time frame. The watch I will present to you today was made in June 1968. So… let’s see it!

citizen super jet auto dater 1

This particular time piece is loaded with a lot of cool features. It is the Citizen Super Jet Auto Dater, model SADS51202-Y. It has a polished/brushed stainless steel case, marked with a circled X. That means the case is unibody and it has no removable case back. In fact the movement comes out only if the crystal is removed. I also love the fact that it is marked “Parawater” (not the common “water resistant” or “water proof”). This was a therm that only Citizen used in order to show that the watch is in fact water resistant, and this one was up to 150m. Not having a removable case back eliminated a weak link into this water resistance issue. You can read about the first Japanese water resistant watc, the famous Parawater, HERE. The mineral crystal is domed, with a concave inner surface. The dial is matte black, with a somehow satinated appearance. It is marker with a 3 stars applied label, an indication to the awesome movement inside. The luminos hour markers (the hour and minute hands have luminous parts too), have a polished trapezoidal shape making time reading very easy to do. The date is positioned at 3 o’clock, where the unsigned winding crown is located too. By the way, the crown is manually winding the automatic movement, sets the date while the date changes only by moving the hour hand back and forward midnight.  I was so wrong! How come I missed the fact that the date changes by pulling the crown?! Just pull the crown in the second position and the date jumps! Pull again, it jumps again! 🙂

citizen super jet auto dater 2

Let’s open it up! Let’s not forget the X marked case, with integrated case back!  The first thing one have to do is to remove the bezel (this is also keeping the crystal into place). Use the right knife blade to pop it open. Then remove the crystal. I do that using a suction cup. On the lateral part of the crystal there is a black rubber seal and underneath the crystal there is a transparent one in order to facilitate water resistance. So, the crystal is out, and so are the seals. Now turn the watch dial side down and slowly turn the crown. The movement will fall, so pay attention. Now that we have the movement out, turn it so we can see it. The beautiful Jet movement, gold plated, 39 Jewels, three stats, in all its glory! Love it! Read more about Jet movements HEREReassembly is somehow similar. A special attention should be payed when placing the crown back. Press it into place only when in the right position into the movement, otherwise the stem can break. When pressure fitting the bezel back into place, be careful not to break the crystal. The stem or/and the crystal are not available for sale anywhere. So… take your time or take it to a watchmaker. 😉

citizen super jet auto dater 3

Anything else? Well.. not only that is in almost perfect condition but I can introduce to you how the original box should have been. Most of the times the box alone can double the value of the watch if it can be sourced. So… this is how a Super Jet auto dater box should look like.

If you want to see the 150m diver version of this watch, one of my all time favorite pieces, click HERE

I hope you enjoyed the article and found the info about the X case watches useful. Now, lets get them opened! 🙂 These movements need to be seen! Click on the images to magnify them if you need more details.

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Citizen Auto Dater Seven para40mwater day-date


A special place among my favorite Citizen movements is reserved for the Jet ones. And this one has the last of the Jets Citizen ever made. My watch was made in September 1966 and Citizen produced these movements up to about 1967. The last JET is the day-date Auto Dater Seven.

citizen auto dater para water

As you can see, it is in perfect, NOS condition, with price tag and booklet. The writing on the paper is in Japanese only. The day wheel is written in Japanese so, it is safe to conclude that, the watch was intended for JDM (Japan domestic market). The entire case as well as the bracelet, are made of beautifully finished stainless steel. The crystal is acrylic. and has a date magnifier.

The style of the watch is elegant, with a fluted bezel, simple silver dial with a sunburst effect. There is no luminous material on the dial or hands. The frontal part of the case is brushed, and all the rest is polished. The bracelet is also finished with a nice combination of polished and brushed surfaces.  As I mentioned before, it is a day-date. That means that in addition to showing the date (at 3 o’clock), it also displays the day of the week (at 12). The day is in Japanese only, printed in black with red for Sundays. All the hour markers, the day and date frame and the Seven logo are applied.

The crown is used for winding the watch (although it is an automatic it can be winded by hand) and setting the time in the first position. The day changes by advancing the hands passing midnight. The date changes by pulling the crown. One pull of the crown will advance the day of the week one time. The crown get back to first position by it’s own due to a spring. Pulling it again, will change the day one more time. This system was named by Citizen “Easy Change”. What can I say, it is easy indeed.

The movement, is the last Jet, calibre 4102. It has 25 Jewels and beats at 18,800 bph. Beautiful!

Read more about watches powered by Jet movements HERE.

Citizen Jet Para Water Professional


I was and I still am intrigued by the fact that the lume on Citizen watches doesn’t seem to age like the one on Omega or Rolex or other collectable brands. In fact I lusted for an aged, yellow-brown lume for some time now, on a vintage Citizen and was not able to find a good one. They are either perfect green like new, or, on not well preserved pieces, dirty. It made no sense to me. How can I get a nice patina dial? Finally my dream came true with this awesome timepiece!

The Citizen Jet Para Water Professional

Inside the case back the model no reads: JTI30705I

citizen jet parawater professional

This watch was made in 1962 soon after the introduction of the first water resistant Japanese watch: the Parawater. It also has the Professional label, a rare clasp, a Jet movement and an awesome case back engraving. This was an age when watches had a practical use and not the jewelry that they (sometimes) are today.

The case is made entirely in SS, it is about 37mm and has a simple dial, three hands and no date. The lug hols make changing the original SS bracelet changes so easy! In fact this is a watch that looks good no matter what strap you throw at it: nato, mesh, leather, even rubber. The winding crown is also SS and it is unsigned. At first sight it is very similar with the Parawater I told you about, but this one is not made for water use, but for aviation?. An indication of the link to the aviation is the Jet airplane engraving on the back and the Professional label on the dial. Also a Jet logo is printed on the dial too (Jet movement). In fact the dial has 12, 3, 6 and 9 printed, and the markings: “Citizen Jet, Para Water, Professional”. The hour markers are trapezoidal,  raised and polished. They are filled with (now) the beautifully aged luminous material and so are the matching dauphine hands. All things considered it is a beautiful, simple, balanced face that I like a lot! I have seen very few examples of this model and some of them have an arrow shaped hour hand and a thicker minute one with a flat tip.

The movement is the usual Jet movement with a circular swinging rotor. It runs at 18,000bph as all of them do. This one is the first one made, launched a few months earlier, in October 1961. My watch in made (3-4 months later) in March 1962. It is an automatic (hand winding also possible) with non hacking sweeping central seconds hand. It is called Citizen calibre 3010, Jet movement, and was the first movement that Citizen produced in relatively high numbers. The interesting fact about the rotor is that in earlier types it is marked “Automatic” rather than the usual “Autodater”. The date was added a year later, and so did the name “Autodater”.

And to add to the story… the clasp is marked: “Easy-O-Matic, Citizen Band, Pat.Pend. Stainless Steel” making it even more interesting if that was even possible. 🙂

Citizen Jet Autodater 21 jewels


The Jet movement is a ring rotor one that I really like a lot. Rumor has it that Citizen chose to replace this movement with a central swing rotor, even though the rotor one was better, because the later one was cheaper to produce.  This one is a 21 jewels movement, beating at 18,000 bph. It has a power reserve at about 45 hours. The movement, as stated , is an automatic but can be manually winded too. I came to the conclusion that the rotating ring has 4 or 6 screws but the 4 screws one seems to be a more rare earlier type. The thing I like the most it the beautiful sound that the rotor is making when rotating, smooth, loud, mechanic.

Enjoy the photos taken by Sergio.

citizen jet autodater

Citizen 1160

Features: Automatic, Sweep second, Date: quickset by repeated pulling the crown

Data
13”’, Dm= 29.0mm. Do= 29.4mm
H= 5.3mm
(visible automatic wheel +0.1mm)
F= 1.45mm
T= 2.25mm
39 jewels
f = 18000 A/h
power reserve 47h

Balance staff U3163

Stem W3088

Hands
1.52 x 1.00 x 0.18mm

Remarks
1963-
ring rotor rotating on 9 ruby balls
nearly useless jewels in the three rotor suspension plates
differences not known between 1160, 1161

family/generations:
0310: 21/23/25 jewels
0320, 0321: 17/19 jewels
0340, 0341: 35 jewels
1120, 1121: 19/21/23/27/35 jewels, date
1130, 1131…1133: 17/19 jewels, date
1150: 39 jewels, date
1160, 1161: 39 jewels, quickset date
1170: 27 jewels, quickset date
redesign, all with quickset date:
4000…4002: manual wind, 23 jewels, day, date
4101…4103: 25 jewels, day, date
4111…4113: 19 jewels, day, date
4111…4113: 19 jewels, day, date, month
4130: 35 jewels, day, date

Example, year: signature; shock device
1965: Citizen Jet, Autodater; Parashock
(Citizen 4130 without day disc)

Data from here

Read about the Newmaster watch powered by this movement here:

https://vintagecitizenwatches.com/2014/07/20/vintage-citizen-newmaster-autodater/