There should be a serial number for the case, if the watch is real. If there is no number, it is fake. Look for signs of wear on the lug ends and look at the case back of a gold watch. A fake Rolex will usually have an area where the gold has worn off, exposing the white metal beneath it.Are real Rolex watches made of gold?
Rolex only uses 18 ct gold , a princely alloy composed of 750‰ (thousandths) of pure gold, then find the right mixture of elements including silver and copper necessary to produce the different types of 18 ct gold, which, in Rolex's case is yellow, white and Everose. It is well known that Rolex is not like most other watch brands.Do fake Rolex watches have serial numbers?
Genuine Rolex watches have their serial numbers deeply engraved into the metal, whereas fakes often just have it “etched” with acid. The serial number is located behind where the band connects to the body of the watch, on the six o’clock side.