Seiko Cal. 4581 - 272

This Automatic model from 1991 features a 44mm PVD Black case. Powered by the 4581 caliber with 28j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-4de78ecfda93]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1991

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