Seiko Cal. 0788 - 677

This Spring Drive model from 1970 features a 37mm PVD Black case. With its 21mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-9ecde64765d9]

Also known as: World Timer, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1970

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