Seiko Cal. 4581 - 613

The Seiko 4581-613 represents an important milestone in Seiko's 1992 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-9c4b3c7ac3ac]

Also known as: Samurai, Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

23j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1992

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