Seiko Cal. 4557 - 925

This Automatic model from 1975 features a 43mm Stainless Steel case. Powered by the 4557 caliber with 33j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-43ee7b069928]

Also known as: Sumo, Navigator

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1975

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