ROLEX on Instagram: "The Explorer II. It tells day from night when you can’t. Equipped with a distinctive orange 24-hour hand pointing to a fixed 24-hour graduated bezel, this is the watch of choice for speleologists and polar explorers. With a robust yet comfortable Oyster bracelet. Scratch-resistant sapphire. And our signature Cyclops lens over the date. Oystersteel, 42mm, calibre 3285. #Rolex #ExplorerII"