Remember to Notice that commencing in 2005, Rolex started engraving the serial number on the interior bezel (also known as the rehaut) underneath the crystal with the 6 o’clock situation. 100M Water-resistant: With a h2o resistance of up to 100M you can easily cope with most circumstances in life, which https://www.watchesworld.com/a-history-of-watch-reference-numbers/