Seiko Cal. 4581 - 397

The Seiko 4581-397 represents an important milestone in Seiko's 1990 lineup. Powered by the 4581 caliber with 17j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-08b0f3419f2a]

Also known as: Sumo, Arnie

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1990

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