Seiko Cal. 3871 - 686

The Seiko 3871-686 represents an important milestone in Seiko's 1987 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-01cd6a090c09]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

26j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1987

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