Seiko Cal. 3871 - 866

This Spring Drive model from 1991 features a 42mm Stainless Steel case. It features a Green dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-721384ba2862]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1991

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