Seiko Cal. 0787 - 763

This Hand-Winding model from 1977 features a 45mm Stainless Steel case. Powered by the 0787 caliber with 20j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-57edeb8b4e34]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1977

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