Seiko Cal. 4581 - 487

The Seiko 4581-487 represents an important milestone in Seiko's 1997 lineup. Powered by the 4581 caliber with 19j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-9c5cfc1cab14]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1997

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