Make sure you Notice that starting in 2005, Rolex started engraving the serial variety to the interior bezel (often known as the rehaut) beneath the crystal at the 6 o’clock situation. Even though the crystals to the 160xx generation of Datejust watches are still made from acrylic, the sloped "pie https://www.watchesworld.com/a-history-of-watch-reference-numbers/