Seiko Cal. 6693 - 635

This Spring Drive model from 1971 features a 40mm Hardlex-Coated Steel case. It features a Silver dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-78bb5a7deeb3]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1971

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