@the_keystone: A watch all collectors should know about — the platinum @Audemars Piguet Quantième Perpetual Ref. 25850. [Available Now] At 36mm, the proportions are just about perfect. The “Clous de Paris” or hobnail platinum bezel, elegant Breguet numerals, and beautifully balanced perpetual calendar layout make this one of the most refined complicated watches of the 1990s. Turn it over and you’re greeted by a stunning automatic perpetual calendar movement with a skeletonized rotor and beautiful hand finishing. Sold in 1994 and accompanied by an Extract from the Archives, this is pure class—and one of our favorite watches currently available. Available now at #thekeystonewatches #audemarspiguet #ap #watches #perpetualcalendar