Seiko Cal. 0778 - 623

This Spring Drive model from 1976 features a 37mm PVD Black case. With its 22mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-c45c0fe4d962]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1976

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