Seiko Cal. 5638 - 937

This Hand-Winding model from 1969 features a 42mm Two-Tone case. With its 20mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-e070b3f2565b]

Also known as: Samurai, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1969

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