Seiko Cal. 4566 - 646

The Seiko 4566-646 represents an important milestone in Seiko's 1973 lineup. Powered by the 4566 caliber with 28j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-9181ef201063]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1973

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