Seiko Cal. 3812 - 828

The Seiko 3812-828 represents an important milestone in Seiko's 1967 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-cc90a15ce0f0]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1967

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