Seiko Cal. 4599 - 920

The 4599-920 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4599 caliber with 33j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-178485cd9444]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1998

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