Seiko Cal. 4566 - 278

The 4566-278 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4566 caliber with 18j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-3bc33de6b70e]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1995

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