The most surprising may just be a small electronic wall clock. The clock, in an iconic green hue, bears Rolex's name and logo with link a Patek Philippe plaque link and serial number on the bottom. Clocks made by Patek were used by a number of other watch companies including IWC, according to Reardon, to synchronize time across their facilities. It's likely that link this clock is one of only a few items in the world bearing the Rolex and Patek double signature. link