DOXA - 17 jewels - anii 60
CEAS BARBATESC DOXA
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Un Doxa clasic cu 17 rubine, calibru 2851, anii 60, placat cu aur, arata mai bine ca in poze. diametru 37mm.
Data anunt: 17 ianuarie 2015 Actualizat: 07 martie 2015 Vizualizari: 1320
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Membru din: 09-2013
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Serial numbers
Numbers stamped into a watch case would have meant something to the manufacturer; they are usually serial numbers used to keep track of production, e.g. to identify a batch of items for a specific customer, or in some faulty material is used for a batch which needs to be recalled.
Serial numbers don't in themselves contain any information and are only useful if you can identify the watch maker, if they are still in existence, and if they have access to their old records. Some manufacturers serial numbers are known and published in reference works or on the web - but to use these you need first to know who the manufacturer was.
You shouldn't even assume that it is possible to infer anything from the magnitude of a number, for instance a newly formed company might like to give the impression that they had made a lot of watches, so they might arbitrarily started their numbering at, say, 700,000, implying that they had made this number of watches when in fact watch number 700,001 might be the second one they made.
It is not possible to identify the maker of a watch or watch case from serial numbers stamped on the movement or case. Because serial numbers are just what the name says they are - numbers - every manufacturer can easily have used the same numbers at different times.
For instance, take a random number such as 1,234,567 - one million, two hundred and thirty four thousand, five hundred and sixty seven. Longines made a watch with this serial number in 1900, and IWC made a watch movement with exactly the same serial number in 1951.
NB: Longines watches from this period have a single serial number for the case and movement, IWC watches have different numbers for the movement and case.
There is nothing spooky about this numerical "coincidence", it simply means that by the year 1900 Longines had made over a million watches, whereas it took IWC until 1938 to make their first million, and until 1951 to make movement number 1,234,567, by which time Longines were in the eight millions.
So you can see that knowing just the movement or case serial number doesn't help to identify the manufacturer.
Deci este posibil ca doua ceasuri sa aibe aceiasi serie pe capac pentru ca fac parte din acelasi lot de fabricatie.
Extrasul este de pe site-ul: http://www.vintagewatchstraps.com/casemarks.html
Am reprodus complet pentru ca probabil intereseaza mai multe persoane