Seiko Cal. 4490 - 617

The Seiko 4490-617 represents an important milestone in Seiko's 1999 lineup. Powered by the 4490 caliber with 27j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-5e9886ee46b3]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1999

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