Seiko Cal. 4590 - 564

The Seiko 4590-564 represents an important milestone in Seiko's 1982 lineup. Powered by the 4590 caliber with 22j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-7e02f7a58e23]

Also known as: Sumo, Shogun

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1982

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