Seiko Cal. 4580 - 933

This Hand-Winding model from 1972 features a 45mm Hardlex-Coated Steel case. Powered by the 4580 caliber with 26j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-b13993ba0d3d]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1972

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