18kt yellow gold case with a brown leather strap. Fixed bezel. Silver dial with Roman numerals hour markers. Minute markers around the inner ring. Date display at the 3 o'clock position. Automatic movement. Scratch-resistant sapphire crystal. Blue sapphire cabochon crown. Solid case back. Case diameter: 42 mm. Case thickness: 13 mm. 18kt yellow gold deployment clasp. Water-resistant at 30 meters / 100 feet. Functions: hours, minutes, seconds, date. Additional Info: date displays at 3 o'clock position. Cartier Ballon Bleu de Cartier Mens Watch W6900551.
SPECIFICATIONS:
| Brand | Cartier |
| Model number | W6900551 |
| Gender | Mens |
| Series | Ballon Bleu de Cartier |
| Watch Style | Luxury |
| Movement | Automatic |
| Engine | Cartier Caliber 049 |
| Functions | Hours, Minutes, Seconds, Date |
| Case Material | 18kt Yellow Gold |
| Case Shape | Round |
| Case Diameter | 42 mm |
| Case Thickness | 13 mm |
| Case Back | Solid |
| Crown | Blue Sapphire Cabochon |
| Bezel | Fixed |
| Dial Color | Silver |
| Dial Type | Analog |
| Dial Markers | Roman Numerals |
| Bracelet | Brown Leather |
| Clasp | 18kt Yellow Gold Deployment Clasp |
| Calendar | Date display at the 3 o'clock position |
| Water-Resistant | 30 meters / 100 feet |
| Crystal | Sapphire |
| Watch Label | Swiss Made |