Seiko Cal. 3860 - 904

This Spring Drive model from 1979 features a 39mm Two-Tone case. With its 21mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-71ef1b320226]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1979

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