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 Super Auto Dater 39J 150m Professional


That is a long title! In fact it is even longer, it is:

“Citizen Super Auto Dater 39J Para150mWater Professional SADS52801-Y”

This must stand for something and for sure it means business! 🙂 Citizen Super Auto Dater

This one is one of the very best Citizen has ever made. I was lucky enough to find a mint, NOS example.  It has all the characteristics that a top quality iconic vintage diver should have. Even today after almost 50 years it stands out proud in the tough world of diving watches.

It has a unibody case (the case back doesn’t come of and the movement can be taken out only by removing the crystal)  made in SS, 40mm diameter, all polished except for the upper part of the beautifully shaped lugs. The fact that the case is monocoque is obvious when reading the engraving on the back where a small “X” inside a circle can be found. This is the sign that Citizen used for a unibody cases. The crystal is tightened in place by a steel pressure ring and there are two rubber seals that protect it from water intrusion. One ring in under the crystal and one on the side of the crystal. The crown too has it’s own rubber O ring making the watch water resistant up to 150m. Citizen used the term Para Water. (I love these words) So the watch is Para150mWater, making it the first of the iconic line of 150m divers Citizen made with the same overall look and function. No Citizen lover should miss having at least one 150m vintage diver, no matter the model.  Back to the crown (unsigned and polished), one interesting feature is the fact that the threads are not on the tube connected to the case but on the crown itself. So the crown indeed screws INTO the case and not ON the case like most of the screw-in crowns do.

The thick crystal,  flat on the surface and concave on the dial side gives beautiful reflections and makes the polished hour markers really pop. In fact the entire face of the watch is pure gorgeous! The elegant writing, the polished hands and hour markers, the green luminous material (still glowing powerfully today), the date window… awesome! How beautiful is it to read: “Citizen Super Auto Dater 39J 150m Professional” and then, the 3 stars, the sign that Citizen used for superior watches at the time. “Professional” – nice! 🙂

The bezel is bidirectional friction type with a simple insert with a luminous dot inside a triangle.

The strap in this case is a Tropic curved ends one, 19mm wide at the lugs part that I think compliments the overall appearance of the watch a lot. It is a diver, Citizen used Tropic straps and this combination is gorgeous.

Citizen Auto Dater 39J 150m

Inside the watch the magic continues! The 1150 citizen calibre with 39 jewels is, if not one of the best, for sure one of the most beautiful movements Citizen has. The Super Jet movement was introduced in 1963, my watch is made in 1967, June. It beats at the usual 18,000 bph and it is automatic with hand winding feature also. It has a date that can be adjusted by passing the hour hand over midnight. It is not a hacking seconds. The beautiful part is the circular geared rotor. This is what Citizen called Jet movements. Some say that Citizen replaced this type by the centrally mounted oscillating weight because it was more economical to produce and service even though not as qualitative. I would have expected to see a six screws  rotor when opening the watch but I was equally pleased to find a rotor type that had four and is engraved “Citizen”only, without the usual “super jet”. The entire movement is gold plated.

Here it is how the papers should look like:

citizen-super-auto-dater-39j

As a conclusion all I can say is that finding one of these is not an easy task but when completed the joy is huge and for sure this is a watch that once in your collection you will never ever sell.

Read more about Citizen diving watches HERE.

Read about another ultra rare diver HERE – the 500m Chrono Master Chronometer

Citizen movement table from 1931 to 1978


My friend, Stephen , did an extraordinary work putting together all the info that summarises the development of Citizen movements since the very first day of the company’s existence. This is an ongoing project that I am sure it would be a great source of useful information for all of us. All the data is introduced in chronological order.

Here it is: LINK HERE 

citizen leopard

Thank you for all the effort placed into this tremendous research!

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/