Seiko

6309 Turtle

Name: Seiko 6309 Turtle
Brand: Seiko
Availability: InStock

45mm

Low $489

Median $559

High $702

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The Seiko 6309 Turtle gets its character from that broad cushion case: substantial on the wrist, but softened by rounded flanks and a crown tucked down at four o’clock. Its black dial, generous luminous markers, and unfussy day-date display make it feel like the working diver it was built to be, rather than a vintage watch trying to charm you.

Produced from the late 1970s into the 1980s, the cushion-case 6309-7040 and 6309-7049 are the references to seek for this original Turtle silhouette; other 6309 divers used slimmer cases. The automatic 6309 neither hand-winds nor hacks, so don’t mistake either omission for a fault.

Replacement dials, hands, and bezel inserts are common on surviving examples, and can change the watch’s character considerably. Original dial printing and matching lume deserve attention, as does the screw-down crown: worn threads are a particular nuisance here. The original 150-metre rating is no assurance that a decades-old example is ready for a swim.

MovementAutomatic

Caliber6309

Case MaterialStainless Steel

Case Size45mm

Water Resistance150m

What owners love

The broad cushion case sits surprisingly comfortably for a 45mm watch: the short lugs keep it from sprawling across the wrist, and the recessed crown at four o’clock stays out of the way.
The big round hour markers and broad hands make the dial easy to read at a glance. Owners particularly like the uncluttered layout and the distinctive shape of the hands—it has plenty of character without needing extra decoration.

Common Criticisms

The 6309 movement neither hand-winds nor hacks. Getting a stopped watch going takes some gentle movement, and you can’t stop the seconds hand with the crown to set it precisely.

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6309 Turtle

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