Cartier Ballon Bleu 18K Rose Gold Automatic Watch, W6920036. Self-winding automatic officially certified chronometer movement. 18K rose gold case 42.1mm in diameter. Original Cartier fluted crown with a blue sapphire cabochon. Scratch-resistant sapphire crystal. Chocolate brown guilloch dial. Functions: hours, minutes, seconds, and date. Original Cartier 18K rose gold bracelet. Excellent, pristine condition, works flawlessly, no signs of wear, comes complete with original Cartier box, papers, and ElegantSwiss one year warranty. The watch is running strong and keeping accurate time, having been timed to precision on Witschi Expert Timing Machine.