Seiko Cal. 4551 - 729

The Seiko 4551-729 represents an important milestone in Seiko's 1981 lineup. Powered by the 4551 caliber with 20j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-66917a47c42f]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1981

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