Seiko Cal. 6640 - 488

The 6640-488 is a sought-after Quartz piece from Seiko's golden era. With its 19mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-727a21acb7eb]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1992

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