Seiko Cal. 3812 - 866

This Hand-Winding model from 1981 features a 37mm Gold-Plated case. Powered by the 3812 caliber with 29j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-62a61a97e233]

Also known as: Helmet, Rally

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1981

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