Seiko Cal. 3871 - 933

The Seiko 3871-933 represents an important milestone in Seiko's 1987 lineup. With its 18mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-060fa745b35e]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1987

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