1. Inside the warranty leather case: You can find the model and movement model of the watch in the warranty leather case. This information is usually engraved on the inner ring of the watch dial at six o'clock, and sometimes also on the inner ring of the watch dial. engraved on the lugs, but the strap needs to be removed in order to view this information.

2. Bottom of the watch: The label on the bottom of the watch is usually marked with the manufacturer's logo and some coding information, including the model number of the watch.

3. Warranty card: The warranty card contains the model number of the watch and other important information.

4. Side of the case: The model number can be found on the side of the case, especially outside the 6 o'clock and 12 o'clock positions.

5. Inside the buckle: You can see some engravings on the inside of the buckle, such as "EO8" which represents the watch produced in August 2007.

6. Consult an authorized Rolex dealer or visit the official Rolex brand website for enquiries.