Seiko Cal. 0770 - 969

This Spring Drive model from 1968 features a 44mm Hardlex-Coated Steel case. Powered by the 0770 caliber with 24j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-0473322bdf81]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1968

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