Please Take note that beginning in 2005, Rolex commenced engraving the serial variety within the internal bezel (also called the rehaut) beneath the crystal for the 6 o’clock position. ST a hundred and five.003-65 may very well be greater than 7 characters, it’s also damaged down into four neat “chunks” https://www.watchesworld.com/a-history-of-watch-reference-numbers/