Seiko Cal. 4578 - 750

This Hand-Winding model from 1988 features a 46mm Two-Tone case. Powered by the 4578 caliber with 17j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-237dd278d88b]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1988

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