Seiko Cal. 0770 - 120

The Seiko 0770-120 represents an important milestone in Seiko's 1978 lineup. Powered by the 0770 caliber with 34j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-737a297cc6c3]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1978

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