Seiko Cal. 4590 - 739

Released in 1986, the Cal. 4590 with design code 739 was part of Seiko's domestic market collection. Powered by the 4590 caliber with 33j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-2a1800dc7fb0]

Also known as: World Timer, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1986

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