Seiko Cal. 4577 - 893

The Seiko 4577-893 represents an important milestone in Seiko's 1975 lineup. Powered by the 4577 caliber with 30j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-97386c66ec77]

Also known as: Monster, Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1975

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