Seiko Cal. 6644 - 490

The Seiko 6644-490 represents an important milestone in Seiko's 1968 lineup. With its 19mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-6add2b4c2ea0]

Also known as: Rally, Flighty

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1968

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