Seiko Cal. 4556 - 905

The 4556-905 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4556 caliber with 23j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-6cd93c227ce6]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1986

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