Seiko Cal. 4581 - 813

The Seiko 4581-813 represents an important milestone in Seiko's 1966 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-0767544182d5]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1966

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