Hublot Big Bang Unico Sapphire Watch - 42 mm - Skeleton Dial Limited Edition of 500-441.JX.4802.RT

42 mm polished sapphire crystal case, polished sapphire crystal bezel with 6 H-shaped titanium screws, sapphire crystal with anti-reflective treatment, polished transparent composite resin skeleton appliques and dial, HUB1280 UNICO manufacture self-winding chronograph flyback movement, approximately 72 hours of power reserve, transparent structured lined rubber strap, titanium deployant buckle. Water resistant to 50m (5 ATM).