Seiko Cal. 6634 - 690

This Spring Drive model from 1973 features a 38mm PVD Black case. It features a Green dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-9884bf1b2199]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1973

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