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Unused Seiko Diver Uemura 6105-8110






Seiko's 6105 model marked their second true diving watch featuring the distinctive cushion-shaped case. The uniquely asymmetric design of the case was engineered for durability, housing a recessed signed crown at the 4 o'clock position. This timepiece gained popularity among American servicemen during the Vietnam War and gained further fame when actor Martin Sheen, portraying "Captain Willard" in the 1979 film Apocalypse Now, sported it. In Japan, it's often referred to as the "Uemura," honoring the Japanese adventurer Naomi Uemura, who wore the 6105 during his 18-month dog sled journey across Greenland from Alaska.

The Seiko 6105-8110 stands apart from other watches, primarily due to its distinctively asymmetrical case design. Measuring 44mm in width, the watch commands a substantial presence on the wrist. Despite its size, the relatively compact 47mm length, combined with the cushion-shaped case, ensures comfortable wear without any awkward overhang, a common issue with larger cases. The case comprises three parts: a solid case back, a cleverly crafted mid-case, and a bidirectional 60-click bezel with an aluminum insert.

Its matte black dial is thoughtfully arranged, free from unnecessary clutter. The minimal text includes an applied Seiko logo at 12 o'clock, accompanied by "Automatic" below it, creating a balanced visual. Above the 6 o'clock position, the water resistance-related text provides further detail. The hour markers consist of a blend of applied squares and substantial rectangles at 6 and 9, with a dual marker at 12, adding depth to the dial and lending the watch a bold appearance.

This particular example is recognized as the "Resist" variant. Early models from 1970 displayed "Water 150m Proof" on the dial and "Waterproof" on the case back. However, at some point that year, Seiko modified the text to "Water 150m Resist" on the dial and "Water Resistant" on the case back, in compliance with updated ISO guidelines before the January 1972 deadline.

Condition-wise? We're incredibly excited to offer this unused and mind-blowing example: With no scratches observed, this Uemura still retains its original sticker on the case-back and comes with its original Tire Tread XGL-731 and its original box.

A fantastic example of Seiko’s iconic diver history, if you've been looking for the perfect example then this is it!


The watch current works flawlessly and it will be sold as is. If you wish to service it, it will cost extra. Please let us know if you wish to service it.


Ships from Tokyo, Japan.

Unused Seiko Diver Uemura 6105-8110

  • This diver is in pristine condition. The case retains all the factory lines and has no scratches. The dial and hands are in immaculate condition, you can see light darkening on the edges of the hour/minute hands which is expected due to the original lume ageing.

    The caseback retains its original protective film with no observed scratches.

    The are no visible scratches on the glass. You can see a light hue on the inside of the glass which is expected since it was never opened.

    The original Seiko XGL731 straps are in very good condition with no sign of use and can be worn without issues.

    The watch comes with its original Seiko XGL731 "Tire Tread" straps and its original box and outer-box.

  • BRAND: Seiko
    MODEL: Diver watch "Uemura" or "Willard"
    REFERENCE: 6105-8110
    DIAL: Original black dial
    CASE MATERIAL: Stainless Steel
    CASE DIMENSIONS: 44.0 x 48.0 mm, 13.0mm thickness, 19mm Lug Width.
    CRYSTAL: Mineral Crystal
    CASE BACK: Screw-in Stainless Steel
    MOVEMENT: Seiko Automatic Cal. 6105A
    Manufacturing date: July 1975
    Service History: Unknown, ±20s/day
    Bracelet/Strap: Original Seiko "Tire Tread" XGL731

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