As important as any watch can be too the efficacy of a brand, the 6309-7040/9 is a perfect delivery of intention. It's as rugged and hard wearing as it is aesthetically satisfying. Even as the first "Turtles" released in 1976 turned 48 this year, one thing is certain... they never get old. This example from March of ‘81 is no exception, and marks the last year that production was completed entirely at Seiko’s Suwa division. The Suwa “S” logo can be seen just above the six o’clock marker, and for many collectors, it’s the first thing to look for when considering an acquisition. The dial is flawless, and the luminous plots have developed a deep golden patina that is even throughout. The hour and minute hands have retained their original polished finish, though some visible oxidation is present on the “lollipop” sweep as well as some light brassing. The bezel rotates with a firm click in either direction, and while the insert shows moderate wear throughout, it is even, and the markings are still clear and legible. The crown and case back screw down tightly, and the 6309A is a revered bulletproof workhorse ready to provide many more years of reliabilty. Post service, it’s keeping near perfect time, and the day and date can be independently quickset via the crown. It’s unpolished and completely original aside from a replacement crystal, and we’ve paired it with an Uncle Seiko oxidized GL-831 flat vent strap for a fit and finish that’s as close as possible to the original. A true Seiko icon, and still their top selling diver to date, it’s a must have for any collector, and in our humble opinion, a perfect “tool” watch.

Uncle Seiko Oxidized GL-831 Flat Vent Black Composite

Serviced- 4/24

Diameter- 44mm

Lugs- 22mm