Chalcedony, a mineral featuring delicate bluish tints, now stars in the latest introduction to the Millenary collection. 
This Millenary Chalcedony Tourbillon is distinguished by its openworked chalcedony mainplate, a skeleton movement enhanced by a Tourbillon and diamond-set rings, along with a full-set pink gold oval case and a stingray leather strap.
The Tourbillon escapement is visible to the left of the watch face itself 
Water resistant to 20 meters / 65 feet. The watch's AP 2861 hand wound movement provides a decent 72 hours of continuous power.