This is an authentic Rolex Daytona Cosmograph 116523 40mm watch with chronograph gray dial, 18K yellow gold bezel, 18K yellow gold and stainless steel oyster bracelet, original Rolex paper and Rolex international service guarantee card. Descriptions: Brand: Rolex Model: Daytona Reference: 116523 Serial Number: K Serial Gender: Men's Case Diameter: 40mm Features: Dial: Chronograph Gray Dial Bezel: 18K Yellow Gold Bezel Crystal: Sapphire Crystal Case: Stainless Steel Case Movement: Certified Chronometer Self-Winding Automatic 4130 Movement. Bracelet: 18K Yellow Gold and Stainless Steel Oyster Bracelet Wrist Size: Fits Wrist up to 7.75 in. Box: Watch Box Paper: Original Rolex Paper and International Service Guarantee Card