Seiko Cal. 4438 - 763

The Seiko 4438-763 represents an important milestone in Seiko's 1973 lineup. It features a Black dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-ccc3cd1c6771]

Also known as: World Timer, Flighty

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1973

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