Seiko Cal. 5620 - 903

This Spring Drive model from 1976 features a 42mm PVD Black case. With its 19mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-ca0a1a067188]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1976

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