Seiko Cal. 0763 - 666

This Hand-Winding model from 1976 features a 42mm Stainless Steel case. With its 21mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-9568c9b29758]

Also known as: Sumo, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1976

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