Seiko Cal. 6642 - 555

The Seiko 6642-555 represents an important milestone in Seiko's 1974 lineup. With its 19mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-79c05e5e9787]

Also known as: Rally, Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1974

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