Seiko Cal. 4578 - 661

This Hand-Winding model from 1980 features a 40mm PVD Black case. It features a Burgundy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-9f33c9221855]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1980

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