Seiko Cal. 7131 - 129

This Hand-Winding model from 1976 features a 37mm Titanium case. With its 21mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-27c6bccf1dda]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1976

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