Seiko Cal. 4581 - 406

The Seiko 4581-406 represents an important milestone in Seiko's 1989 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-710f1409f498]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1989

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