Seiko Cal. 0778 - 397

This Spring Drive model from 1972 features a 37mm PVD Black case. With its 18mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-70357df6552d]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1972

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