![Seiko 6139-6002: what parts are aftermarket and, more importantly, how can you tell? Didn't cost much and condition is obviously too good to be original, just keen to learn a little about Seiko 6139-6002: what parts are aftermarket and, more importantly, how can you tell? Didn't cost much and condition is obviously too good to be original, just keen to learn a little about](https://i.redd.it/09gitbi8yuo41.jpg)
Seiko 6139-6002: what parts are aftermarket and, more importantly, how can you tell? Didn't cost much and condition is obviously too good to be original, just keen to learn a little about
SEIKO 6119c automatic watch Movement, original Spares Parts-Choose From List (2) – ASA College: Florida
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Seiko Galante Spring Drive GMT 5R66A Original Papers, Box and... for $3,505 for sale from a Seller on Chrono24
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