Citizen eco drive gn 4 s manual how to#
Citizen eco drive gn 4 s manual serial number#
Citizen eco drive gn 4 s manual full#
Citizen eco drive gn 4 s manual windows#

The V2s were either date only or had date and day like yours. The earlier Cosmostars were hand wind, then the V2 versions were launched around 1970/1 вЂ“ your example is from November 1971. ThereвЂ™s a great example on my blog if you havenвЂ™t seen it already: I agree with you about the Cosmostar V2 models, they are fine, high beat movements and can be found in very good working & cosmetic condition at almost give away prices sometimes.

Citizen eco drive gn 4 s manual full#

Sorry again for not doing a full reply sooner, but now back at my pc so can get good access to the вЂnet. Perhaps you might consider putting up a page on the blog about spare parts? A source in Japan that might be better than the US? I gather that this particular Cosmostar V2 might not have been exported but am unsure. I would say you would be very hard pressed to find this kind of quality for 20 times the price. The cost for these watches was less than $20 each. Actually, all of them have them but this one is simply stunning. One of the watches is a Cosmostar V2 with a black dial and day/date feature. I am considering having two made from sapphire since even the Citizen repair centers I have contacted do not have them. All are amazing works of engineering! One thing though. 6600 - 28800 ladies watches for my wife with one going to my mother-in-law. How wonderful to see the heritage behind it.ДЄnyway, I have bought three cal. I have worn a Blue Angels Navihawk (the first series) for over a decade. Stephen, nice blog and I must say it motivated me to take a much harder look at vintage Citizens. IвЂ™m impressed but not that surprised that the watch has run well for 40+ years вЂ“ has it been used and serviced regularly in that time? I have a catalog from 1971 which shows a number of Cosmostar V2 models, but not yours IвЂ™m afraid.

Citizen eco drive gn 4 s manual serial number#

GN-4-S is a code for the type of case, to aid in servicing, and is typical of a waterproof (вЂParawaterвЂ™) model,Д 1100889 is the serial number and this tells us that it was the 889th watch to be made in November 1970. Thanks for providing all the information from the case back, this is what the numbers mean:Д¤-6602256-K is the case number, and on this one the 6602 tells us the movement number (the movement number should also be stamped on the movement itself, near the balance wheel), It runs at 28,800 beats per hour, so itвЂ™s a вЂhigh beatвЂ™ model reflecting a good quality movement that will be capable of very good time-keeping. The Cosmostar V2 automatics вЂ“ there was an earlier Cosmostar hand winding model too вЂ“ was first made in 1970 and is a fine little movement. YouвЂ™ll find it on page 8 of the Table вЂ“ the error IвЂ™ve made (just a typo I think) is that IвЂ™ve put the movement number as 6900 when it should be 6600. What makes yours difficult to find in the Table is that from your description the dial does not have the model name on it вЂ“ itвЂ™s a вЂCosmostar V2вЂ™. Hi Brian вЂ“ IвЂ™m pleased to tell you that your watch is in the Movement Table in fact, although your question has alerted me to an error it! For which I must thank you рџ™‚ If you have any information that could be added, or which would amend the existing table, please let me know, I am more than happy to revise it!

Citizen eco drive gn 4 s manual how to#

And IвЂ™ve tried to cover the models used with each movement so that key dial markings are available as well as movement number or name.ДЄnd finally, you can find at the end of the table a page on how to date a particular model where there is a serial number stamped on the case back вЂ“ Citizen started to do this more consistently from about 1960. The table is laid out in chronological order, earliest first вЂ“ follow the link below. Importantly, itвЂ™s always work in progress since new information will be added as it becomes available вЂ“ the table has had several revisions so far. After a fair bit of research, particularly gathering reliable reference material, I have been able to put together a movement table, covering the period 1931 to 1980.

Citizen eco drive gn 4 s manual windows#

Conversely, a table showing the movements used in SeikoвЂ™s has been available for some time, and is a great tool for seeing how the movements were developed over time and what were the key dates in the history of the brand.ДЄ movement table is invaluable for collectors in identifying old watches correctly, since it can show, for example: jewel count whether or not day and date windows will be present and what speed the watch runs at вЂ“ beats per hour. One of the obvious gaps in the information about vintage Citizens is a comprehensive summary of the movements they used in their model range.