Seiko Cal. 4573 - 812

The Seiko 4573-812 represents an important milestone in Seiko's 1979 lineup. Powered by the 4573 caliber with 17j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-e1d3cd3ebc4e]

Also known as: Sumo, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1979

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