Seiko Cal. 0770 - 733

The Seiko 0770-733 represents an important milestone in Seiko's 1978 lineup. Powered by the 0770 caliber with 17j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-d5c308adf417]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1978

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