Seiko Cal. 4581 - 106

This Hand-Winding model from 1969 features a 44mm PVD Black case. It features a Black dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-e326a86f993c]

Also known as: Rally, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1969

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