Seiko Cal. 6631 - 835

This Hand-Winding model from 1982 features a 41mm PVD Black case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-531fba2bd0d8]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1982

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