Seiko Cal. 4437 - 807

This Hand-Winding model from 1979 features a 44mm Titanium case. It features a Champagne dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-cad0ffcce2b2]

Also known as: Sumo, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1979

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