Brand New Authentic Vacheron Constantin Patrimony Retrograde Day-Date Automatic Blue Dial Men’s Luxury Watch Model 4000U/000R-B516. Polished 18kt Rose Gold case with Dark Blue Alligator Leather strap. Deployment clasp. Fixed bezel. Dial description: Rose Gold-toned Hands and Index Hour Markers. Retrograde Day and Date Displayed, on a Blue Dial. dial. Automatic movement. Calendar: Date indicated by large central hand. Chronograph sub-dials display: Day of the Week, Power Reserve, Date. Powered by Vacheron Constantin Caliber 2460 R31R7/2 engine with 40 hours power reserve. Watch functions: Date, Power Reserve, Hour, Minute, Second. Pull and Push crown. Scratch Resistant Sapphire crystal. Round case shape. Case size: 42.5mm. Case thickness: 9.7mm. Transparent case back. 30 Meters – 100 Feet water resistant. 2 year WatchMaxx warranty. Also known as model: 4000U000RB516.