Seiko Cal. 3812 - 812

This Spring Drive model from 1976 features a 39mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-c82cfc8e9644]

Also known as: Monster, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1976

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