Seiko Cal. 4590 - 204

Released in 1966, the Cal. 4590 with design code 204 was part of Seiko's domestic market collection. Powered by the 4590 caliber with 31j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-0d66e40c49a1]

Also known as: UFO, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1966

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