Seiko Cal. 5664 - 920

This Automatic model from 1968 features a 46mm Gold-Plated case. Powered by the 5664 caliber with 21j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-c71b950be57b]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1968

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