Seiko Cal. 3871 - 602

This Spring Drive model from 1977 features a 39mm Hardlex-Coated Steel case. Powered by the 3871 caliber with 34j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-b5782fd36437]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1977

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