Flying Tourbillon. Exceptional power reserve of 170h. Manual-winding. Silicium Technology. Caliber UN-171. 45mm. Titanium case with ceramic bezel. Water-resistant to 30m. Sapphire crystals. Leather strap with carbon structure and folding buckle.,Wrist watch, Executive Skeleton Tourbillon,Cal. UN-171. 21 Jewels, Manual winding movement,Titanium/ceramic case, Ceramic bezel, 45mm, Water-resistant : 30 m