Seiko Cal. 6647 - 793

The Seiko 6647-793 represents an important milestone in Seiko's 1981 lineup. With its 22mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-85e6a2d8837f]

Also known as: Rally, Silverwave

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1981

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