Seiko Cal. 6131 - 983

This Hand-Winding model from 1976 features a 41mm Titanium case. With its 18mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-518e9a888719]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1976

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