Seiko Cal. 3867 - 764

This Spring Drive model from 1978 features a 37mm Hardlex-Coated Steel case. Powered by the 3867 caliber with 28j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-244f4dc88581]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1978

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