Seiko Cal. 3863 - 691

This Spring Drive model from 1973 features a 44mm Two-Tone case. With its 21mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-af8d052b3f35]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1973

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