Seiko Cal. 4551 - 581

The Seiko 4551-581 represents an important milestone in Seiko's 1989 lineup. Powered by the 4551 caliber with 24j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-907ffc9c3fa9]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1989

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