Seiko Cal. 6617 - 557

The Seiko 6617-557 represents an important milestone in Seiko's 1999 lineup. Powered by the 6617 caliber with 20j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-6c95ba44150e]

Also known as: Sumo, Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1999

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