Seiko Cal. 4559 - 421

The 4559-421 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4559 caliber with 28j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-0fb88fa2f1c9]

Also known as: Monster, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1970

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