For the production dates of the different diver models, I emailedSeiko Japanand asked them to provide detailed info about each variation (the 62MAS, 6105s, 6309s, 6306, 7002 and the 7S26 series). Seiko provided the "approximate" dates of production for the difference movement calibers, but ...
SEIKO 7S26-0020 A1 SCUBA DIVER AUTOMATIC aka: SKX-009J1 misc: due to camera and lighting the bezel and dial appear black BUT they are BLUE SEIKO 6138-0011 aka: UFO SEIKO 6309-7049 aka: Turtle SEIKO 6309-729A F1 aka: Slim Turtle SEIKO 7548-70...
SKX007, SKX009, SKX011, SKX171, SKX173, SKX175 ,7S26-0020 case, New Seiko 5 SRPD51、SRPD53、SRPD61,etc. Features: - Stainless Steel Construction - Curved Solid/hollow End Links - Double Lock Diver's Clasp with Push Button - Five-piece links - Milled Clasp - Width: 22 mm,Length: ...