The ref. 730.025 1815 Tourbillon - with its massive tourbillon at 6:00- was introduced at SIHH 2014. It's caliber L102.1 features hacking, zero-reset seconds; when the crown is pullend the balance stops and the seconds hand resets to twelve, allowing for precision adjustments. Ref. 730.032 is its pink gold sibling. This platinum version is limited to 100 pieces.