Seiko Cal. 4437 - 673

The Seiko 4437-673 represents an important milestone in Seiko's 1981 lineup. It features a Green dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-b9ae8f22b441]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1981

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