Seiko Cal. 4566 - 291

Seiko 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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