Seiko Cal. 7136 - 935

This Spring Drive model from 1977 features a 45mm Stainless Steel case. With its 18mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-00a63e9484d7]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1977

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