A new addition to the Slim d’Hermès Quantième Perpétuel welcomes a new model in titanium. The new watch is not all titanium but a combination of metals in a round case measuring 39.5 mm in diameter. The middle case and case back are in bead-blasted grade 5 titanium, the bezel is in platinum or 18K rose gold, and the crown and pusher are in 18K white gold for the titanium and platinum model and in 18K rose gold for the titanium and 18K rose gold version.