Seiko Cal. 0731 - 474

The Seiko 0731-474 represents an important milestone in Seiko's 1967 lineup. Powered by the 0731 caliber with 21j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-890d226c9103]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1967

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