Seiko Cal. 7180 - 761

This Spring Drive model from 1979 features a 43mm Titanium case. With its 18mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-f99a3f0bc8e6]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1979

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