The Rolex Yacht-Master II 116689 in 18k white gold with a blue dial and blue ceramic bezel — nicknamed the "Smurf" — is among the rarest and most technically complex Rolex watches ever made. Housing the caliber 4161 with a programmable countdown regatta timer, the white gold Smurf is a regatta professional's instrument and a collector's statement piece. DeMesy & Co. sources pre-owned Rolex Smurf Yacht-Master II watches for Dallas-area collectors and beyond.