Seiko Cal. 4581 - 913

The Seiko 4581-913 represents an important milestone in Seiko's 1978 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-109c189469ce]

Also known as: Samurai

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1978

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