Seiko Cal. 4578 - 404

This Spring Drive model from 1973 features a 41mm Hardlex-Coated Steel case. Powered by the 4578 caliber with 34j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-a8546110db65]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1973

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