The case of the Classic Quantieme is made of 18-carat rose gold. The crown features the "W", DeWitt's signature .
In addition to indicating the hours, minutes, and seconds, the Classic Quantieme is equipped with a calendar with days of the week in the aperture at 11 o'clock, months at 1 o'clock, the date using a central hand as well as a mother-of-pearl moon phase indicator positioned at 6 o'clock.
The wristband is an alligator strap with rose gold pin buckle. The Classic Quantieme is water-resistant to 30 meters.