Seiko Cal. 4559 - 731

The Seiko 4559-731 represents an important milestone in Seiko's 1990 lineup. Powered by the 4559 caliber with 21j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-9a89d45b46a9]

Also known as: Pogue, Navigator

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1990

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