Seiko Cal. 4431 - 748

The Seiko 4431-748 represents an important milestone in Seiko's 1973 lineup. It features a Green dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-e16eb86a700b]

Also known as: Pogue, World Timer

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1973

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