First released to market in 1945, the Rolex Men’s Oyster Perpetual DateJust has been officially given the designation as Rolex’s signature watch. The watch’s unique magnifying Cyclops eye makes keeping track of the date amazingly easy, while the Rolex DateJust’s 31 jewel movement, automatic winding technology, and waterproof case makes the timepiece both durable and precise. The Rolex Oyster Perpetual DateJust is perfect for use in most environments including the boardroom, parties, outdoor adventures and travel.