What’s so special

The Seiko 6309-729A, often nicknamed the “Slim Turtle,” is a vintage automatic dive watch from the late 1970s to the 1980s, beloved for its robust design and classic aesthetic. Part of the renowned Seiko 6309 series, this model is distinguished by its slimmer case profile compared to its predecessor, the 6309-7040, hence the nickname “Slim Turtle.” The “Pepsi” bezel, a defining feature of this model, features a two-tone red and blue color scheme which has become iconic in the world of dive watches. The dial typically showcases bold, luminous markers and hands, ensuring readability in low-light conditions, and the day/date complication adds practicality to its design.

Powered by Seiko’s reliable 6309 automatic movement, the watch is both durable and accurate, with a water resistance of 150 meters, making it suitable for recreational diving. The “Slim Turtle” remains a sought-after piece among vintage watch collectors, appreciated for its history, design, and functionality.

About this example

This Seiko 6309-729A  comes to you on a high quality nato strap, freshly serviced, and showing excellent timekeeping. This watch is more of a resto-mod featuring a high quality aftermarket dial, and matched faux patina-ed hands. All of the rest of the watch is authentic to this reference.