You should Be aware that starting in 2005, Rolex began engraving the serial range over the inner bezel (generally known as the rehaut) beneath the crystal at the 6 o’clock position. Bodyweight: Genuine Rolex watches are made from higher-top quality supplies, normally resulting in a heavier experience than counterfeit watches. https://www.watchesworld.com/a-history-of-watch-reference-numbers/