Seiko Cal. 3816 - 925

The 3816-925 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-90def45f1fc0]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1966

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