Seiko Cal. 4581 - 128

The Seiko 4581-128 represents an important milestone in Seiko's 1980 lineup. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-ef95882f3fb4]

Also known as: Samurai, Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1980

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