Seiko Cal. 3816 - 722

This Spring Drive model from 1982 features a 42mm Stainless Steel case. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-1ae4e353dafc]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1982

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