Seiko Cal. 4578 - 381

This Hand-Winding model from 1975 features a 42mm Stainless Steel case. Powered by the 4578 caliber with 29j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-1281790a84dd]

Also known as: Samurai

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1975

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