Seiko Cal. 4490 - 577

This Solar model from 1991 features a 34mm Stainless Steel case. Powered by the 4490 caliber with 20j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-468afe4df1ab]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1991

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