Seiko Cal. 7178 - 782

This Spring Drive model from 1972 features a 35mm PVD Black case. With its 21mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-a5809c2ed79c]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1972

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