Seiko Cal. 0723 - 922

The Seiko 0723-922 represents an important milestone in Seiko's 1978 lineup. Powered by the 0723 caliber with 23j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-0c442e2d3194]

Also known as: Tuna, Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1978

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