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![Identification] [seiko 7N39] anyone know what I've got here? Can't determine what year this was made or what model this is? Couldn't find in SEIKO catalog. Serial number on back 831839. Doesn't](https://preview.redd.it/xsh0ggnnsmm61.jpg?width=640&crop=smart&auto=webp&s=9331d5dd438f7c9d92ae706e276e9f75ce61e64e "Identification] [seiko 7N39] anyone know what I've got here? Can't determine what year this was made or what model this is? Couldn't find in SEIKO catalog. Serial number on back 831839. Doesn't")
Identification] [seiko 7N39] anyone know what I've got here? Can't determine what year this was made or what model this is? Couldn't find in SEIKO catalog. Serial number on back 831839. Doesn't
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![Identification] Does anyone know the model number of this Seiko Watch? : r/Watches](https://preview.redd.it/mud9nmlbgr581.jpg?width=640&crop=smart&auto=webp&s=a4c901741650edbebaa585886b7bab82958ce9f7 "Identification] Does anyone know the model number of this Seiko Watch? : r/Watches")
Identification] Does anyone know the model number of this Seiko Watch? : r/Watches
Establishing a production number estimate for the Grand Seiko First – The Grand Seiko Guy
SEIKO - Serial Number to Manufacture Date Decoder
