Seiko Cal. 4424 - 540

The Seiko 4424-540 represents an important milestone in Seiko's 1971 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-5535faf0ebd0]

Also known as: World Timer, Emperor

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1971

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