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Citizen watch serial number3/10/2023 The 21 jewel 3100 movement was first produced in 1964 and into the 1970s. This date is determined from the first three digits of the serial number (90810557). It also depends on the models you have, if you have a rare piece, and or maybe a chronograph, or a diver for example then it will be of more interest.Īlthough I avoid suggesting values, if you let me know what models you have I could at least tell you if its one that would be of interest to collectors. Vintage Citizens are not as popular as some other makes for collectors, and ladies watches dont seem to be collected at all. My advice is usually to search the internet, especially completed sales on eBay to see what the same model has sold for previously. The GMT world time model uses the 7450 movement, and I reckon that not too many of them were made sold since they arent seen very often.Ī donor watch is a possible source, but there are so few of these around.ĭo you know what parts are needed It may be slightly easier to find some parts if they are not specific to the world time mechanism, since the movement is part of the 7274 family used in Seven Star V2, Custom V2 and Leopard models. If the information given in this link is correct for this model, yours was made in May 2000 (from the first two digits in the serial number 051222). Are there any online catalogues I could consult kind regards.
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