Seiko Cal. 0770 - 680

This Automatic model from 1979 features a 36mm Stainless Steel case. Powered by the 0770 caliber with 31j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-e7105964f09d]

Also known as: Sumo, Rally

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

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