technical specifications case reference 910.NX.0001.RX Size 54.1 x 41.5 mm case Shiny Microblasted Titanium water resistance 30m or 3 ATM crystal Sapphire with Anti-reflective Treatment dial Hours, minutes, power reserve: Indicated by Anodized Black Aluminium Cylinders. Seconds Indicated by Anodized black aliminium Fastened on the Suspended Tourbillon movement movement HUB9013 Manufacture Self-winding Power Reserve and Skeleton Tourbillon inclined at 35° power reserve Approx. 48 Hours strap & clasp strap Black Structured Rubber Straps clasp Titanium Deployant Buckle Clasp