Seiko Cal. 5631 - 567

This Hand-Winding model from 1968 features a 38mm Titanium case. It features a Champagne dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-4a3b8ed2033b]

Also known as: Silverwave, Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1968

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