The Rolex Explorer I model 214270 has a stainless steel case and it is supplied with a year warranty. The Rolex Explorer was introduced in 1952 as the ultimate watch for the world´s most heralded explorers who have dared to climb Mount Everest, cross the trickiest of waterways, and navigate through the hottest of deserts. It features a distinctive 24-hour hand, an invaluable aid to distinguish daytime hours from night around the poles and underground.