Seiko Cal. 4578 - 374

This Spring Drive model from 1977 features a 35mm Hardlex-Coated Steel case. Powered by the 4578 caliber with 28j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-34bab53737d3]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1977

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