Seiko tank?] Flat battery or something else? Seiko 7n39 5020 not running : r/Watches
Seiko Movement, -- S 7N39: Star Time Supply
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
WATCH SEIKO 7N39--OBBO QUARTZ STAINLESS STEEL WATCH WORKING | eBay
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