Finding the Model Number on a Rolex Watch
Rolex has many different model numbers, or reference numbers for each model watch it makes. For example, a Rolex Datejust has the following model, or reference, numbers that uniquely identify each model;
116333 116203 116233 116231 116138 116139 116208 116238
Finding this number is easy. Just remove the band or bracelet at the twelve o’clock side and look for the numbers inscribed on the case as shown below.
The steps to getting the numbers between the lugs, whether it is the model number or the serial number, are easy. There is further instruction for the first time buyer and general Rolex maintenance tips.