Seiko Cal. 5641 - 812

This Spring Drive model from 1970 features a 34mm Titanium case. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-63604465bb01]

Also known as: Monster, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1970

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