The Rolex Submariner Date in 18k yellow gold is a prestigious model that combines the durability of the Submariner with the luxury of solid yellow gold. It features a 41mm Oyster case, a royal blue dial, and a unidirectional rotatable bezel with a scratch-resistant Cerachrom insert in blue ceramic. The watch is powered by the Rolex Caliber 3235 movement, offering a 70-hour power reserve and is waterproof to 300 meters (1,000 feet)