Seiko Cal. 3816 - 375

This Spring Drive model from 1980 features a 41mm Titanium case. With its 19mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-2c41d5269a37]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1980

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