Seiko Cal. 5633 - 985

This Spring Drive model from 1974 features a 39mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-909c4744b4ff]

Also known as: Navigator, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1974

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