Citizen produced a range of divers in their 1960s and 1970s line-up. A few are relatively well known, but others are not and are rarely seen. This page brings them all together in one place as a reference point. Although I’ve tried to make it as comprehensive as possible, there is little information available elsewhere so I regard it as ‘work in progress’. I hope information can be added later, or errors corrected, with the help of fellow collectors so it as complete as possible. I indicate in the article with a ‘?’ (sometimes with notes as well) where I am not entirely sure about the data I’ve gathered, and I welcome any comments about the information so it can be developed and firmed up over time.
Although this page covers Citizen’s mechanical divers, I appreciate that they also produced some excellent quartz models in the late 1970s, most notably the 600m rated Crystron. They are not included here, at least for the time being, since I have not got the necessary reference material.
I have included dates against each movement number, which is the date I understand the movement was first produced, but this may not be the year when the diver model using that movement was introduced. I believe it’s likely that some divers would not have been brought to the market in the same year the movement was first produced. This is an area of information that I hope can be clarified in the future.
The divers are grouped by depth rating (starting at 100 meters), and I have included only models which can be described as ‘true’ divers, i.e. they have a moveable external or internal bezel, and lumed hands and markers which can be used under water to time a dive. All the divers are automatics.
Case backs are often stamped with the case type in the usual way, e.g. ‘GN-4-S’. However, a number of the models are stamped with an alternative marking for a screw down water proof type, namely ‘OR-O’. This marking is usually seen on divers, but not exclusively so.
Where possible I have credited images I’ve saved from the internet, but many I’m afraid I am unable to credit. I wish to generally acknowledge and credit the owners of these images here, and if you are the owner please let me know, via the ‘comment’ facility, so I can either credit them fully or remove them if you wish. I have used the images only to provide supporting information for this page.
If you have good/better images of any of the models, or indeed any I have missed, and you are happy to let me use them on this page (with acknowledgement of course) please let me know.
Depth Rating: 100 meters
Citizen’s 100m divers are part of the Seven Star range, and two movements were used. The first is the 5270 movement with 21 or 23 jewels, first launched in 1965. This is a non-hacking, hand wind-able calibre running at 18,000 beats per hour (bph). Two case types are used, one a conventional type with external bezel (I believe this is bi-directional) and screw down crown, the other a twin crown type with internal rotating bezel turned by a second crown. NB: I have previously referred to this model as a ‘compressor’ model – however I am now aware that this is not correct, so I have edited this page to reflect that and refer to it as a ‘twin crown’ model. See this post for more information: https://sweep-hand.org/2014/05/01/citizens-so-called-compressor-diver/
The second movement is the 7270 with 21 jewels, a calibre used in the Seven Star V2 range and introduced in 1969, with hand-winding, and running at 21,600 bph. Only models with an external bezel were made with this movement.
Dials and case backs on the Seven Star divers are marked ‘Parawater’ or ‘Waterproof’ (export models?) since they precede the early 1970s when manufacturers had to change to water ‘resistant’.
The Seven Star divers were made with a range of dial colours – black, silver, blue, orange and red, and all had day and date complications (see image galleries). Here are the models in the range:
5270 (21 and 23 jewels): Model Number: 61-5773 / Case Number: APSS 52904-Y (23j) or 4-520858 Y (23j, and 21j, export ‘proof’ model)
‘Proof’ Export Example, with 21 jewels (? original hands):
The orange dialled version of the export ‘waterproof’ model, with many thanks to Vlad for contributing photos of his watch:
5270 (21 jewels): Twin Crowns – Case Number: APSS 2812-Y or 4-520343 Y
There was also a version of this model, maybe only an export version, that had a straoght 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:
5270 (21 jewels): Twin Crowns – Case Number: 4-521315 Y, Marked ‘Deluxe’ with separate date and day windows, Crowns at 3 & 4 o’clock
5270 (21 jewels): Twin Crowns – Case Number: 4-520017 Y, Marked ‘Deluxe’ with separate date and day windows, Crowns at 2 and 4 o’clock
7270 (21 jewels): Model Number: 67-5776 / Case Number: 4-720521 Y & 4-721641 Y
(above image courtesy of Steve Oliverio)
(above image courtesy of Steve Oliverio)
(above image courtesy of ‘Techca’)
The Dandy Seven diver – this is a fascinating discovery, a model I had not seen before in any form (for sale, in catalogs or adverts), but one example has been put up for sale on Yahoo Japan. It appears to me to be a genuine model, since the seller posted pictures including the original manual which showed instructions for using the external bezel. This example appears to be ‘NOS’, on its original bracelet with tags and box. The external bezel appears to be unique to this model, with a large circular lume pip not placed within a steel triangle.
The Dandy Seven was a range of more colourful designs from the very end of the 1960s aimed at younger buyers. They used a 27 jewel movement from the ’52’ family (which included the much better known Crystal Seven range). My own example has a 5204 movement, so at this stage I am assuming this is used in the diver (day and date windows are laid out the same) but I add a ‘?’ since I cannot verify that and there were other 52 movement designations that had 27 jewels:
5204? (27 jewels) Dandy Seven: Model Number: None / Case Number: 4-520688 Y
Depth Rating: 120 meters
Just one model was made with this depth rating – a Jet Auto Dater – using Citizen’s earlier 1120 automatic movement with its circular geared rotor, 19 jewels and date only complication, running at 18,000 bph. Although this was first produced in 1962 it’s probably unlikely that this model was produced as early as that – unfortunately no serial numbers are stamped on the case backs, so this is a mystery still to be solved.
I have found examples only of black dialled models with external bezel – with two types of bezel (?) and two types of hands (?) – I’ve not been able to fully authenticate these variations but my judgement at this stage is that they are original types.
1120 (19 jewels): Jet Auto Dater – Case Number: ADRS 51301-DA
Other hand set – ? original second hand
Depth Rating: 150 meters
The 150 meter models are Citizen’s largest diver group. For the most part using an almost standard design, they used 6 movements or their derivatives between the mid-1960s through to the early 1980s. The first two models in the listing below – the ‘Crystal Date’ and the high grade ‘Super Auto Dater Professional’ are particularly rare, as is the high-beat 7200 model.
The overall design is the archetypal hefty steel case with black dial and external bi-directional black bezel and, with one exception, large screw down crown. In all but two models the hour hand is the ‘Mercedes’ type (see also notes for each model below). Two models have day as well as date complications, and two have special case backs.
There are several small variations to the bezels and inserts, which I’m not yet fully familiar with, so I hope to include information on that at a later date. With thanks also to Alex for information on hand sets.
1150 (39 jewels) Super Auto Date Professional: Case Number: SADS 52801-Y / 18,000bph / Date Complication / Movement first produced in 1963
Note this is a one-piece case – indicated by an encircled ‘X’ on the back:
Here’s an example of the movement in a different model:
5410 (33 jewels) Crystal Date: Case Number AUDS 52802-Y / 18,000bph / Date Complication / Special Case Back / Movement first produced in 1968
5401 (21 jewels): Model Number: B52806 (export version of the 62-5370, see below) / 18,000bph / Date Complication / Special Case Back, with no serial number / Long Hands / Ball at end of second hand / No lume to right of date /Movement first produced in 1968 (image by ‘1386Paul’):
The special case back has no serial number:
Following image by ‘1386Paul’:
5401 (21 jewels): Model Number: 62-5370 (other than case back, same as B52806 – see above) / Case Number: 4-540115Y / 18,000bph / Date Complication (sometimes red print?) / Long hands / Ball at end of second hand (note: plain steel hand with ‘spear’ shaped short end also offered on 4-540115 – see catalog pic) / No lume to right of date / Movement first produced in 1968
7200 (24 jewels): Case Number: 4-722710 Y / 28,800bph / Day & Date Complications / Long hands / Ball at end of second hand / High-beat, with fine adjuster on balance (as in ‘Leopard’ range / Movement first produced in 1970
7470 (21 jewels): Model Number: 68-5372 / Case Number: 4-740131 Y / 21,600 bph / Date Complication /Long hands / Ball at end of second hand / No lume to right of date / Movement first produced in 1971(?)
6000 (21 jewels): Model Number: 62-6198 / Case Number: 4-600851 Y / 21,600 bph / Date Complication / Short hands / Ball at end of second hand / Red date print / Movement first produced in 1971 / Movement stamped ‘6001’
Known as a ‘Challenge Diver‘, at least this model and the 52-0110 were called Challenge Divers, echoing the Challenge Timer moniker given to Citizen’s 1970s mechanical chronographs:
Note the stamped area is smaller on the earlier case back (left) leaving a slightly wider margin than the later one (right) – images courtesy of ‘1386Paul’ :
The third type of back clearly shows the calibre number (image by ‘Scoobadoo’):
In the spirit of ‘I hope information can be added later, or errors corrected, with the help of fellow collectors so it as complete as possible‘ (see the introductory paragraph at the top of the page) I recently added comments and an image of a 62-6198 with an orange dial and blue bezel provided by ‘1386paul’ – however, ‘Mikko’, who is also a Citizen diver collector, kindly provided some detailed comments about this along with other interesting material, with excellent photos. I have now included this information at the end of the next section on the 52-0110 models since it covers them and the 62-6198.
8210 (21 jewels): Model Number: 52-0110 / Case Number: 4-820789 Y / 21,600 bph / Date complication (some may have red date print?) / Short hands / Ball not quite at end of second hand / Movement first produced in 1977 (?) – also produced with blue and orange dials
One of citizen’s ‘Challenge Diver’ range – see this link: http://tokeibakai.exblog.jp/17252830/ (thanks to Mikko for finding this)
Case back image courtesy of ‘Galpo’:
The 8210 movement rotates in one direction only (image by ‘Galpo’):
Here is the orange dialled model (pic by ‘1386paul’):
And here is an example of the blue dial – please note: the bezel insert is not correct (it’s from a Seiko diver), image from the internet via ‘1386paul’:
Contributions from 1386paul (Paul) and Mikko: I include here the information and comments I’ve received from these two diver collectors, with many thanks to them for taking the time to let me have information and their observations. For clarity, Mikko’s input is italicised.
62-6198 Orange Dial with Blue bezel?
Paul sent me this image of a 62-6198 with orange dial (not his watch, pic is from the internet):
The case is clearly a 62-6198, and Paul is happy that the dial is original to this piece. However, Mikko suggests that the dial is more likely from a 52-0110:
I’m 99% sure that this example of an orange dialled Citizen is actually the rather rare orange dialled 52-0110 with original bezel from a 62-6198. There are several examples for comparison on the internet. Dial details are identical to the black 52-0110 variant I show later in my commentary. Paul’s example also has a black date disk, and a second hand from a 52-0110.
Paul tells me he has examples of the 62-6198 in his collection with black printed date wheels, and with the 52-0110 second hand.
I have looked as closely as I can at this dial and Mikko’s images and agree that the design fits the 52-0110 (see his pics below) so, at this stage at least, I cannot say that this example is a bona-fide orange dialled 62-6198. I have not yet been able to find another example of an orange dialled 62-6198, which is what we need to find to pin this one down! Ideally original catalogs or adverts are what we need to authenticate both the dial and hand designs. And here’s an image from Martin (‘Martback’) of his orange 52-0110 which dial-wise appears to identical to the one above (thanks Martin), with dial code of 8210-825095:
As to the bezel, it clearly looks to be blue in the image, and Paul believes that this was the original colour. Mikko on the other hand is sceptical, and suggests ‘blue’ may be the result of UV light:
I’m still highly doubtful about the existence of a blue bezel in any of the “basic” 1970s divers. I have seen many examples which at first glance appear to be blue, however my personal opinion is that blue colour is caused by UV fading. Here is one of the most extreme examples I have found ( http://www.watchmeandyou.com/2011/02/citizen-diver-52-0110.html ). In this case even the dial has turned blue.
So again, there is enough doubt for me about the blue bezel that I need to find an original image, say from a catalog or advert, before I can confimr it is an authentic colour.
On the subject of bezels, here are some very helpful macro images of lume pips, courtesy of Mikko:
Original bezel from 52-0110:
Original bezel from 62-6198:
Reproduction bezel based on 62-6198 specifications:
The lume pip of both original bezels is covered with a very thin layer of glass to avoid wearing of the lume material. There is always a black ring around the lume pip in original ones. Bogdan’s page shows more details how to identify a bezel’s authenticity:
Mikko has also provided some invaluable further information about dials:
Dial variants of the black 52-0110
There are two black dial variants of 52-0110 that I know of. My examples are fully original including crystals. Crystals have some scratches which causes some issues with the quality of the photos
Dial code: 8210 820719-6
My quess (I need to collect more evidence) is that this is the first version of the 52-0110 as the dial details and how it is constructed are quite similar to older Citizen divers (see later). I think the dials have been built in the following way:
Lume pips and Citizen logo are part of the dial (welded or stamped) dial is painted Surface of the lume pip frames and and Citizen logo are polished to remove the paintlume is applied
Here are some photos of the watch and the details (I have one of these from 1977):
8210 820719-6: Date ring frame and lume pip frame are connected. Again, blending to the rest of the dial.
Dial code: 8210 824391 KA
This dial design appears to be similar to the orange dial version of the 52-0110. My theory is that Citizen changed the dial manufacturing technique at some point where lume pips and logo are separately applied after the dial has been been painted. I believe the dial construction is as follows:
Dial is painted lume pips are lumed and installed individually using rivets(??) Citizen logo and date frame are applied with rivets(??). Resulting look is crisper than in the other dial version as details look like they are “floating” on the dial surface. Down side is that quality of the black dial paint is not as good as in other versions and these dials seems to fade over time.
Some photos of the watch and the details (I have two of these from 1977 and 1978):
Dial code: 8210 824391 KA: Letters in the Citizen logo are connected and logo is separately applied. Lume pips are not a fixed part of the dial and have razor sharp edges:
Dial code: 8210 824391 KA: the date frame is not connected to the lume pip and the lume pip is only partly framed. Both of these have been applied separately:
Some additions to 62-6198 variants
This case back variant…..
….has “WATER RESISTANT” text in the dial:
Whereas this case back variant….
…..is missing the “WATER RESISTANT” text:
I have four (3 x 1974, 1 x 1975) 62-6198’s without the “WATER RESISTANT” text and two (2 x 1976) with the text and they all have same dial code: JAPAN 6000-602231-S
And finally two detailed photos of one of my 62-6198’s:
Many thanks to Paul & Mikko for their contributions to this page – their comments and excellent photographs provide invaluable reference material.
8200 (21 jewels): Model Number: 51-2273 / Case Number: 4-822145 Y / 21,600 bph / Date Complication / ‘Spade’ hands / Rectangular lume spot just over half way along second hand / Round intermediate hour markers / Small crown
(image by PeteW)
Depth Rating: 200 meters
Possibly Citizen’s first diver, using the 1120 ‘Jet’ movement in 21 jewel form (first produced in 1962) this 200 meter rated model was known as the ‘Skin Diver’. This is a very rare piece. It appears to have been made with black or silver dials and an external bezel. The dial is marked ‘AUTO DATER’, with a specially engraved back, with no serial number to help date it. ‘KK’ a reader of this blog, owns one of these and kindly offered use of his pictures. With enormous gratitude and full credit to KK, I have now included his images, along with a scan from the relevant ‘museum’ book of domestic Japanese watches and the only other image I have so far of the back, from a silver dialled model, which is missing its bezel. The case is 37.5mm wide, excluding crown, and the crown is push/pull, not screw down.
1120 (21 jewels): ‘Skin Diver’ Auto Dater
Above four images with thanks to ‘KK’ – see also this post: https://sweep-hand.org/2013/03/31/citizens-vintage-200m-diver-the-21-jewel-skin-diver/
(above image courtesy of ‘kuma-kun’)
Depth Rating: 500 meters
Citizen’s highest grade diver, and an exceptionally rare piece, is the Chrono Master 500 meter diver. Tuned to Chronometer standard, as indicated on the dial, this uses the 33 jewel 5420* movement and was first produced in 1971. With date only complication, and a unique minute hand the movement runs at 18,000 bph. The second hand is also unique to this model, with a square lume pip close to the end of the hand.
The special case back features the Chrono master eagle emblem – I’m not sure whether it is in in the form of a medallion (as would normally be the case with standard Chrono Masters) or engraved (which may be more suitable on a diver?).
5420* (33 jewels): Chrono Master Chronometer
* Note: my reference material for this movement gives the movement number as ‘5420’ – see image gallery. I am not sure that this is correct – it may be a mis-print, since the standard 33 jewel date only Chrono Master Chronometer is the 5240