Seiko Cal. 5690 - 663

This Hand-Winding model from 1969 features a 37mm Stainless Steel case. Powered by the 5690 caliber with 18j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-29790413a11b]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1969

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