セイコー (SEIKO) Vintage Turtle Diver 6309 - 7290 (中古時計)

Manufactured in January, 1988

Another typical Seiko dive feature is the offset crown at 4 o’clock which is designed to be less obtrusive which is handy for those use the watch for practical purposes. It’s also surrounded by a high flange to help stop it from being hit accidentally.

The 6309 designation is for a Seiko automatic movement with 17 jewels and 47 hours of power reserve. It beats at 21,600 bph. 

Several signs of wear, the bazel has no click sound but still in normal function and kee