Bear Grylls, former SAS officer, chief ambassador of World Scouting and TV survival specialist can find his way to safety from anywhere on the planet.
One essential piece of kit he would never be without is an indestructible watch that can be trusted to keep time in the harshest environments.
Luminox is his brand of choice, and the star has put his name to a new Luminox Bear Grylls Air Collection designed for intrepid or armchair adventurers.
The world timer quartz watch links to his time in the military by displaying 24 time zones with the home cities of elite special forces around the world.
The 45mm steel watches are water resistant to 200 metres and come on a Cordura strap for £629 or steel mesh bracelet for £729.