Seiko Cal. 6663 - 731

The Seiko 6663-731 represents an important milestone in Seiko's 1998 lineup. With its 22mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-0cdd56b7218a]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1998

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