Whats with the laser-etched cornet thats on some crystals?
Rolex began etching a tiny cornet on sapphire crystals in 2002. It is at the 6 o’clock position and requires either a 10x loupe our really good eyes. It is another anti-counterfeiting measure. Not all watches have it, and they are (like all changes) introducing it across the line slowly. Cornets with the letter “S” in the bottom of it indicates that the crystal is a service replacement. The general consensus on the forum is that it is 1) cool and 2) not that important for collectibility or resale value.
