Rolex Sky-Dweller 42 mm Chocolate Dial — Key Specs  Feature Specification Model Name Rolex Sky-Dweller 42 mm (Chocolate Dial) Reference 326235-0005* Case Diameter 42 mm Case Material 18 k Everose Gold (Rolex proprietary rose gold) Bezel Rolex Ring Command Fluted Bezel (Everose Gold) Dial Color Chocolate Sunburst with Luminous Hour Markers Crystal Scratch-resistant Sapphire with Cyclops Lens Movement Rolex Calibre 9001 Automatic Self-Winding Power Reserve Approx. 72 hours Functions Dual Time Zone (24-hr), Annual Calendar (Saros), Date, Month Indicator Bracelet/Strap Black Oysterflex Rubber Strap with Everose Gold Clasp Clasp Folding Oysterclasp with Rolex Glidelock Extension Water Resistance 100 m / 330 ft Certification Rolex Superlative Chronometer (-2/ 2 sec/day) Style Category Luxury Travel / Annual Calendar Watch