Hi,
It's my understanding that, prior to 1963, Movado wristwatches had six-digit serial numbers, that started with the movement caliber number and then counted up sequentially from there; i.e., the first Cal.150-powered watch would be 150001, the one thousand and first 151001, etc. Yet, I notice that a 1940 Movado 6B/159 I have has a five-digit serial, while a 1942 6B/159 has a seven-digit number! Both have Cal.75 movements and stainless steel cases.

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Movado Watch Serial Number Database

Here are photos of the inside of the casebacks:
1940 model, serial #82520:
1942 model, serial #0085520:
As if Movado's serial numbering system wasn't complicated enough, perhaps there were exceptions to the six-digit rule?
Any guidance would be appreciated!
Thanks,
DaveHi,
It's my understanding that, prior to 1963, Movado wristwatches had six-digit serial numbers, that started with the movement caliber number and then counted up sequentially from there; i.e., the first Cal.150-powered watch would be 150001, the one thousand and first 151001, etc. Yet, I notice that a 1940 Movado 6B/159 I have has a five-digit serial, while a 1942 6B/159 has a seven-digit number! Both have Cal.75 movements and stainless steel cases.
Here are photos of the inside of the casebacks:
1940 model, serial #82520:
1942 model, serial #0085520:
As if Movado's serial numbering system wasn't complicated enough, perhaps there were exceptions to the six-digit rule?

Movado Serial Number Check

Any guidance would be appreciated!

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Movado Men's Watch Serial Number Lookup

Thanks,

Movado Watch Serial Number Check

Dave