Seiko Cal. 4581 - 957

The Seiko 4581-957 represents an important milestone in Seiko's 1990 lineup. Powered by the 4581 caliber with 27j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-d881ec36333c]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

27j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1990

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