If you were ever stuck on a desert island, this would be a pretty good watch to have on hand. Just ask John Rambo – or more accurately, Sylvester Stallone, who has played some of the most iconic action heroes of our time. The actor and Richard Mille set out to create a timepiece that would “conquer the most thoroughly hostile of natural environments”. Those discussions culminated in the RM 25-01 Tourbillon Adventure, which packs a good number of survival-friendly functions, including a detachable compass bezel, a level and a hermetically sealed compartment stocked with water purification tablets (good for 1 litre of water each). Since its million-dollar price tag demands proper horology, too, the watch also includes a tourbillon, chronograph, 24-hour display and indicators for the power reserve, mainspring torque and winding crown position.