Seiko Cal. 4574 - 630

The Seiko 4574-630 represents an important milestone in Seiko's 1977 lineup. Powered by the 4574 caliber with 24j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-5afb9ee2eac0]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1977

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