Rolex Oyster Perpetual Yacht-Master 268621. 37mm steel and rose gold case. Automatic movement Rolex caliber 2236. This watch is water resistant to 100 meters. Chocolate dial with Chromalight display with long-lasting blue luminescence. 18 ct Everose gold bidirectional rotatable bezel with 60-minute graduated with raised numerals. Power reserve of approximately 55 hours. Steel and rose gold Oyster lock bracelet. Box and papers dated December 2017.