Seiko Cal. 4581 - 909

The Seiko 4581-909 represents an important milestone in Seiko's 1985 lineup. Powered by the 4581 caliber with 30j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-33348e1dc4fe]

Also known as: Sea Horse, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1985

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