Seiko Cal. 0770 - 715

This Spring Drive model from 1967 features a 40mm PVD Black case. Powered by the 0770 caliber with 28j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-95111298fa7c]

Also known as: World Timer, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1967

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