Officially Certified Chronometer Reference 4533.51.00 Also known as the Diagano Model with original Bulgari Box Guaranteed Authentic Bulgari CH 40 S TA in mint condition Swiss Made Automatic Precision Chronograph Stainless Steel Size 40mm excluding crown please be advised that the watch measures 40mm Original Black Dial with silver sub dials Original Stainless Steel Bulgari Bracelet 19.5cm wrist size or 7.8 inches this measurement includes bracelet and watch Original Bulgari Sapphire Crystal with anti UV coating This watch is in excellent condition without any damage It is original and will become a perfect collectible treasure