Seiko Cal. 4439 - 217

This Spring Drive model from 1969 features a 40mm Titanium case. It features a White dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-20cd35f5c2f6]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1969

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