Seiko Cal. 6399 - 583

This Quartz model from 1971 features a 41mm Titanium case. It features a White dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-e36d0e50db66]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1971

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