Seiko Cal. 3812 - 612

The Seiko 3812-612 represents an important milestone in Seiko's 1970 lineup. It features a Black dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-12352e9e1640]

Also known as: Monster, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1970

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