Seiko Cal. 0763 - 637

This Quartz model from 1972 features a 41mm Stainless Steel case. Powered by the 0763 caliber with 19j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-28cd0faeb211]

Also known as: Tuna, Sea Horse

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1972

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