Seiko Cal. 0780 - 171

This Spring Drive model from 1972 features a 41mm Stainless Steel case. With its 20mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-bc7fc20515f8]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1972

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