The Quantième Perpétuel Céramique is the latest watch from Swiss watchmaker Jaquet Droz which has been growing since its relaunch several years ago. The Quantième Perpétuel Céramique is housed in a ceramic case and features an unusual dial which displays the date in terms of month, day and day of the week and has a seconds sub dial. The watch uses the Jaquet Droz caliber 5863 automatic perpetual calendar movement is which has a power reserve of sixty eight hours. The Jaquet Droz Quantième Perpétuel Céramique has a black dial with black hands and a black rubber strap with a PVD coated stainless steel buckle.