fly back chronograph

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Citizen Walter Wolf Chronograph


Like most of the times a lot of patience pays off. After a long time searching I have managed to find not one, but two very rare vintage Citizen Walter Wolf chronographs in the very same week! The first one came from Italy, the titanium one, and a week later, the black one came from Germany. (Thank you Fred and Daniel!)

citizen walter wolf

Why is this model so special? Because in the 70’s Citizen produced a lot of interesting watches and their chronograph calibre 8110A was one of the best: fly back, column wheel, day-date, hi beat automatic. What an awesome movement! And where is a chronograph at home?! In a race! So… Citizen made this Walter Wolf watch, with a special case (the one in titanium was one of the early watches to use this material for cases and bracelets). The other one is black coated metal. It also had a bidirectional rotating bezel, a nice feature usually not used in chronographs. On the outer circle of the dial it is the mandatory race related Tachymeter so the outer rotating bezel is a nice addition. Read more about Walter Wolf Racing HERE.

Back to the watch! The black one is made in 1982 and the titanium in 1983. As I was saying the case is special to this model and by doing this, Citizen managed to obtain a 100m WR. That is impressive. The crowns and pushers are non screw in but the caseback is. The winding crown is hard to operate because it is very small. On the caseback we have the Walter Wolf logo (present on the dial too), the brand, the material, the model and the serial no. The country of manufacturing is obviously Japan. In fact I think this model was made for Japan (all the models I know about had English – Japanese day wheel). The bracelet is well integrated with the case and is the perfect design for this racing dedicated watch. The dial is beautiful, black (there is one more model with a golden dial), with a lot of interesting details (please magnify the pictures for better understanding). The luminous material is made with Promethium 147, a radioactive material. Read about it HERE.  It is marked P-JAPAN-P. The rotating bezel is another interesting feature. This in not the usual diving style one but a countdown type! Note the 60-0 markings. (not the usual diving 0-60)  On top of this there is a cardinal inscription (N E S W) for better navigation, of course!  🙂 The movement is the usual Citizen cal 8110A, a vertical clutch chronograph (beating at 28.800 bph) with column wheel and fly back function. It has a day-date indicator. The rotor is special with a different inscription than the common 8110A found in the other models.

vintage citizen walter wolf

Update 2016 October: (pictures credited to the online seller)

Here it is how the original package should look like. Also note that there is a quartz pair of the automatic chrono. Happy to have the  complete NOS package myself. 🙂

walter-wolf-racing-citizen

Update 2017 October:

Here it is another variant, the golden dial one, same titanium case and bracelet. Notice the honeycomb dial pattern. In the picture below you can also see the Walter Wolf F1 car.

Conclusion: A special watch, loaded with  features, a joy to wear and use, a pleasure for the eyes and a huge happiness for the heart and soul of the blessed owner.

Read more about Citizen chronographs HERE.

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Citizen 8100 Chronograph 67-9151 Restoration


One of my favorite Citizen chronographs is the 67-9151 model. I wrote before about a custom project based on this model HERE.

This time I will write about the all original one.

The watch was found in a bad shape, really scratched and dirty.  But even underneath that scratched crystal there could be easily observed the beautiful original green dial. For this model there are available only three dial variations, as seen in the catalog picture below.  The caseback was never removed in the past 30 years. The movement stopped a long time ago and the pushers were not moving.

citizen-67-9151

The restoration process started by removing the caseback and the dedicated bracelet. The design of the stainless steel bracelet fits the  octagonal watch case perfectly being made for this model only. After removing the bracelet and the clasp, it was time for the movement to come out.

The calibre 8110A was serviced and now it is running strongly, as it should. It is a flyback mechanism and features a day – date complication too. It is an automatic movement,  with 23 jewls and hand winding capability. It was produced by Citizen starting from 1972. It is a vertical clutch chronograph (beating at 28.800 bph) with column wheel and fly back function. The fly back function means that you can reset the chronograph while in motion and it will start again without needing to go the entire process of pressing stop-reset-start. So, one push can do all of this. A particularity for this movement is that when you want to change the day you should pull the crown to second position (for changing the date) and push and release the reset (1 o’clock) button.  The column wheel/vertical clutch design of the movement advices to leave the chronograph running for most of the time (this way you can also see the beautiful sweeping central second hand in movement), but from time to time it should be stopped.

citizen 67-9151 chrono

The dial is the main attraction of the watch, and that says something about it. The overall sharp, angular shape of the watch is mirrored in the mesmerising details. The green color is not plain at all but lighter and shinier in the centre and darker at the 3 and 9 sides. The chronograph sub-dials are hexagonal with 3 variations: yellow-white, yellow-orange and all yellow.  The seconds hand for the all yellow version is yellow too while for the other two is orange.

vintage citizen chronograph 8110

At the end of the restoration we have a newly brushed/polished strap and case, fully functional movement, and a new mineral crystal. What a beautiful watch!

Read more about Citizen chronographs on this page:

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

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VIDEO – Citizen Recordmaster Chronograph 63-0110


The only hand winding vintage Citizen movement is the calibre 5702. This movement is found in the Recordmaster, the watch presented in the video. Wonderful piece, with fly back mechanism.

Read the full article about this particular watch here:

https://vintagecitizenwatches.com/2014/02/23/citizen-recordmaster-chronograph-63-0110/

Read more about vintage Citizen (manual and automatic) chronographs here:

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

Enjoy! 🙂

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VIDEO – Citizen automatic chronograph 67-9631 cal. 8100A


This is one of the two vintage automatic chronograph movements made by Citizen, the other is the Citizen 8110A calibre that features an extra 12 hours counter.

A video of 8110A is here:

https://vintagecitizenwatches.com/2014/01/13/video-citizen-bullhead-chronograph-model-67-9356-2/

And here is the video for 67-9631, calibre 8100A. You can see the start-stop-reset mechanism in function, as well as the fly back. Also you can see the way you can change the date and the day. Enjoy!

More informations about this watch here:

https://vintagecitizenwatches.com/2014/01/05/citizen-automatic-chronograph-67-9631/

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Citizen automatic chronograph 67-9631


Citizen had two automatic calibres.

One automatic chronograph is the 8110A and you can read about the “octagon bullhead” that had this movement here:

https://vintagecitizenwatches.com/2013/12/24/citizen-bullhead-chronograph-67-9356/

And the other one is the one I will write about now, the 8100A.

Both of them came with different case design, shapes and sizes with a lot of dials. This is why sometimes is difficult to identify if a certain watch is correct or “reconditioned” with aftermarket parts.

vintage citizen automatic chronograph 8100

This is a one sub-dial design chronograph featuring a lot of interesting details. It was made in November 1973.

The case is made of brushed and polished stainless steel. The chronograph pushers are on the side, where the winding crown is. It is a cushion shape with a circular grain brushed front surface (I have seen a sunburst grain also, and polished – the polished is for sure not correct) and polished everywhere else. The caseback is screw in with a circular brushed flat surface. The crown is signed “CTZ”. The mineral crystal sits a little bit taller than the case, with chamfer edge. Nothing out of the ordinary, jut a simple, normal ’70’s design by Citizen, 38mm wide without the crown.

The dial is blue with orange and silver accents. It is nothing less but gorgeous! The blue changes from dark blue (almost black sometimes) to bright blue and then to a type of green really difficult to picture. Sometimes it seems unreal. You have to see one in real life in order to fully appreciate the beauty of this one. On 6 it is the sub-dial, counting the elapsed (30) minutes. This is the only sub-dial (normal for cal 8100A). The central, orange central sweeping hand counts the seconds. This sub-dial is silver with highlighted 5 minutes periods. The 5-10 minutes is blue. Not only the chronograph hands are orange but also the current time hands are painted (not entirely) orange and they have a luminous line. On 3 o’clock there are the day and the date windows, with a silver painted frame. The days and the dates are printed on black disks. The polished Citizen logo is applied and so are the hour markers. The hour markers have an orange central line ending with a luminous dot. On the outer side of the dial there is a white Tachymeter scale, for racing, you know!

Screen Shot 2014-03-16 at 11.28.56

The movement is the Citizen automatic, 23 jewls,  calibre 8100A with hand winding capability. It was produced by Citizen starting from 1972, just as 8110A. It is a vertical clutch chronograph (beating at 28.800 bph) with column wheel and fly back function. It also features a day and date indicator. The fly back function means that you can reset the chronograph while in motion and it will start again without needing to go the entire process of pressing stop-reset-start. So, one push can do all of this. Of course  that if you want to stop it you can go the classic stop-reset way. A particularity for this movement is that when you want to change the day you should pull the crown to second position (for changing the date) and push and release the reset (5 o’clock) button. It is 27 mm wide and 5,8mm high, (1mm less than 8110A). The column wheel/vertical clutch design of the movement advices to leave the chronograph running for most of the time (this way you can also see the beautiful sweeping central second hand in movement), but from time to time it should be stopped. This is a chronograph that needs to be used. It is not made for design purpose but for timing.

The bracelet is an usual one piece link design, made by Citizen, with a brushed surface that suits the watch perfectly. It is made in stainless steel with a signed “Citizen” clasp. As usual, Citizen bracelets are very comfortable with a lot of adjustments so finding the perfect fit is easy. 

vintage citizen chronograph 8100a

Conclusion: Wonderful Citizen chronograph, vintage yet so modern, with a nice wrist presence and amazing dial!

Enjoy the video of this watch here:

https://vintagecitizenwatches.com/2014/01/25/video-citizen-automatic-chronograph-67-9631-cal-8100a/