Will the watches be able to survive deep sea immersion past their rated depth?

THE EVOLUTION OF DIVER’S WATCHES

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In 1983, Seiko diver’s watches provedtheir outstanding water resistance through the test.

Exceeding any expectation of water resistance at a depth of 1062 meters.

In May of 1983, two Professional Diver’s 600ms were mounted on the Shinkai  2000, a research submersible used by JAMSTEC (Japan Agency for Marine-Earth Science and Technology). The watch was originally intended for use up to 600 meters, yet the timepiece withstood water pressure at a depth of 1062 meters. The watch’s legibility, precision, and exterior remained unscathed, continuing to strengthen its credibility.

Courtesy: JAMSTEC

On September 6, 2014, a test even more extreme confirmed the evolution of Seiko diver’s watches.

The test watches

SBBN12 Driving system : Quartz Water resistance : 1,000m for saturation diving *selected at random

SBDX011 Driving system : Automatic with manual-winding mechanism Water resistance : 1,000m for saturation diving *selected at random

The test site location: The edge of the continental shelf off the northeast coast of Japan (Depth: 600~8,000m)

The test overview: The watches were affixed to the exterior hull of The KAIKO 7000II, with a high-resolution camera to monitor them. Courtesy: JAMSTEC

Courtesy: JAMSTEC

Courtesy: JAMSTEC

Courtesy: JAMSTEC

Courtesy: JAMSTEC

Courtesy: JAMSTEC

All the test watches performed perfectly at depths exceeding 3,000m. * Not guaranteed for all products.

SBBN013 Quartz

At the depth of 3,284 meters. Stopped.

SBDX011  Automatic with manual-winding mechanism

At the depth of 4,299 meters. Stopped.

THE EVOLUTION OF DIVER’S WATCHES Deeper in time, the exploration continues…