Seiko Cal. 4556 - 152

The 4556-152 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4556 caliber with 18j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-b5a31328566b]

Also known as: UFO, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1985

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