This Rolex Day-Date 40 self-winding watch in 18 ct yellow gold has a 40 mm diameter, mono-bloc middle case screw-down caseback and winding crown with Twinlock double waterproofness system. The pave dial studded with glistening diamonds and features baton hour markers it is protected by a scratch-resistant sapphire and cyclops lens over the date. The power behind the 228238 is the Calibre 3255, Manufacture Rolex offers functions that include centre hour, minute and seconds hands, instantaneous day and date in apertures, unrestricted rapid-setting and stop-seconds for precise time setting. It has a power reserve of approximately 70 hours and water resistance up to 100 metres / 330 feet. Complimented by the fully diamond set President bracelet with its semi-circular three-piece links in 18 ct yellow gold and secured with a concealed folding Crownclasp.