Tool of the Deep The Rolex Submariner Date is a professional divers watch with a legacy rooted in underwater exploration. Its robust design, rotating bezel, and luminous display make it a trusted companion for those who venture beneath the surface. The Dive Companion This 2009 reference 116613LB features a 40mm case in Oystersteel and yellow gold, with a striking blue bezel and dial. The Oyster bracelet is fitted with the Glidelock extension system for easy adjustment, while the calibre 3135 automatic movement offers a 48-hour power reserve. A bold and functional classic.