Seiko Cal. 5639 - 632

This Hand-Winding model from 1981 features a 38mm Titanium case. With its 20mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-9ac857ac9b1a]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1981

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