Seiko Cal. 7128 - 950

This Spring Drive model from 1969 features a 41mm PVD Black case. With its 19mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-68e1cf2d9f96]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1969

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