Luxury watch, Brand: Rolex, Type: Ladies, Model/Reference: Datejust 31 Series (Ref. 278241SDO), Dial Color: Silver-tone with Diamonds, Case Material: Steel and Rose Gold-Tone, Bracelet: Oyster Two-Tone Steel/Rose Gold, Movement: Automatic Mechanical Calibre 2236, Frequency: 28800 vph (5 oscillations per second), Jewel Count: 31 jewels, Power Reserve: Approx. 72 hours, Crystal: Sapphire crystal with anti-reflective coating, Bezel: Screw-down Everose Gold bezel, Hands/Markers: Rose gold-tone hands and diamond hour markers on a silver dial, Functions: Analog (Hour, Minute, Second), Date Display at the 3 o'clock position, Case Shape: Round, Case Size: 31 mm, Clasp Type: Folding clasp, Water Resistance: Up to 100 meters / 330 feet.