Seiko Cal. 4581 - 689

The Seiko 4581-689 represents an important milestone in Seiko's 1999 lineup. Powered by the 4581 caliber with 36j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-74f47d9657a6]

Also known as: Helmet, Flighty

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Champagne

Jewels

36j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1999

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