If it came down to owning just one watch, there’s no question that Seiko’s 6309-7040/49 is a strong contender. Still their top selling diver to date, it’s a tool watch so perfectly executed, it remains seated firmly at the top of our list. Balance, contrast, and contouring all neatly assembled into a finished product that is much greater than the sum of its parts. A bare bones beauty that more than proves that less is in fact, more. This “Turtle” from March of ‘82 is a prime example of how the right amount of wear only adds to the appeal of a great tool watch. The flawless matte black dial is stunning. The hour markers are free degradation or discoloration, and the luminous material has developed a soft stone patina. The hands have held on to their polished finish, and are free of any oxidation or corrosion. The bezel rotates with a firm click in either direction, and the insert’s “crackled” gray and black finish is mostly even throughout. A count up style, the insert numerals and hashes are still quickly legible at a glance. Contrasted against the crisp dial, the bezel wear adds just the right amount of character to prove the more than 40 years this rugged tool watch has witnessed. The case is unpolished with only light, even wear throughout. The factory finishes are still clearly visible, and the corners are crisp. The case back is free of tool marring, and the original markings and “Tsunami” logo are still clear and well defined. Both the case back and crown screw down tightly with ample threading. It’s keeping near perfect time post service, and ready for many more years of reliable service. We’ve paired it with a genuine Seiko Z-22 flat vent strap for a fit and finish in line with the original. Completely original aside from a replacement crystal, it is a true Seiko icon, and a must have for any collector.

Seiko Z-22 Black Flat Vent Composite Strap

Serviced- 12/25

Diameter- 44mm

Lugs- 22mm