Seiko Cal. 4593 - 681

This Automatic model from 1967 features a 42mm Two-Tone case. Powered by the 4593 caliber with 28j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-7fc29e04c78f]

Also known as: Sumo, World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1967

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