Seiko Cal. 3831 - 701

This Spring Drive model from 1966 features a 41mm Two-Tone case. With its 19mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-eed564cd1f0f]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1966

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