Seiko Cal. 4577 - 580

Released in 1987, the Cal. 4577 with design code 580 was part of Seiko's domestic market collection. Powered by the 4577 caliber with 21j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-937e066211b5]

Also known as: UFO, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1987

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