Seiko Cal. 7178 - 785

This Automatic model from 1976 features a 39mm Titanium case. With its 21mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-f378bc9af381]

Also known as: Sumo, Shogun

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1976

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