Seiko Cal. 3871 - 923

The Seiko 3871-923 represents an important milestone in Seiko's 1980 lineup. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-01ee40086b54]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1980

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