Seiko Cal. 0770 - 761

This Automatic model from 1977 features a 35mm Stainless Steel case. Powered by the 0770 caliber with 17j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-00bca426cd1a]

Also known as: Bullhead, UFO

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1977

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