SEIKO caliber 6309 case ref.# 729A F1 Black dial and Pepsi bezel The Slim Turtle case is NOT the same as the 7548 divers series, 7002 or the SKX. The Suwa Logo Size Debate - Seiko has not officially confirmed any change in logo size based on production da
The second generation of the 6309 diver series produced from 1982 to 1988 , a departure from the original "cushion-case" Turtle. This model features a blue and red "Pepsi" bezel. Its limited original run and popularity among Seiko MODders when it was firs