Seiko Cal. 7137 - 381

This Hand-Winding model from 1975 features a 36mm Stainless Steel case. With its 20mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-2e9152fb5e52]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

26j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1975

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