Seiko Cal. 3871 - 842

The Seiko 3871-842 represents an important milestone in Seiko's 1985 lineup. With its 19mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-beb77f8b726a]

Also known as: UFO, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1985

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