Seiko Cal. 4566 - 291

The 4566-291 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4566 caliber with 21j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-7b0a9153efb5]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1978

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