Seiko Cal. 6642 - 673

The Seiko 6642-673 represents an important milestone in Seiko's 1997 lineup. Powered by the 6642 caliber with 36j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-e737c08d2e07]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1997

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