Seiko Cal. 4424 - 648

The Seiko 4424-648 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-2f9aceeec9b8]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1978

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