Seiko Cal. 3812 - 937

This Spring Drive model from 1971 features a 39mm Hardlex-Coated Steel case. Powered by the 3812 caliber with 19j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-93fcd541ad72]

Also known as: Shogun, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1971

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