A lot of us have fallen offer for them.... the dreaded Rolex quality control issues.... the infamous "Monday" watches... :banghead: :banghead: Bad quality control can comprise many types of issues, ranging from lint on the crystal to the movement actually not working as it should or parts coming off the watch..... For instance, there was a report of a ceramic bezel insert breaking into halfs after the watch has been dropped on the floor (never was confirmed). Also, pics of of a ceramic bezel insert falling out of the bezel has recently been posted plus some of the clasp joints on an SS GMT II 116710 bracelet having broken. So far, I've seen the following QC issues on the Rolex watches I've had: Daytona 116520: Chronograph hand did not reset properly. Got fixed at Rolex SA in Geneva. SS Sub Date 16610: faulty lume (in the "dot" of the seconds hand there was a dark spot in the lume and also in one of the hour markers). On of of the 16610's that I had also a wobbling SEL. Never had it fixed but sold the watch later on. Sea-Dweller 16600: Lint under crystal on the BNIB watch. Very badly regulated from the manufacture (minus 7 secs./day). Wobbling SEL. Got both issues fixed by the local AD watchmaker. Datejust 16234: tiny scratch in the sapphire crystal. I had a new crystal installed under warranty. Deepsea Sea-Dweller 116660: I noticed uneven coating of Super-LumiNova on some of the indices. However, this did not show up when they glowed in the dark. The second one I had was flawless. Milgauss 116400GV: a tiny piece of metal (? - it reflected light!) was stuck in the "L" of "Milgauss". I had my AD watchmaker remove it without any problems. So which Rolex QC types have you experienced? :thinking: Are those QC issues acceptable in your opion?