The breadth of its mechanical women's watch collections separates Patek Philippe from many esteemed marques who design serious men's watches, yet only create quartz watches for women. Its collections range from an exquisite, manual-winding, high-jewelry Gondolo to the ultra-sporty Nautilus and the elegant Calatrava. And with the recent launch of the Twenty~4 Automatic (which previously only had a quartz movement), now every collection has a mechanical option. This new watch has a 36mm round case and luminous-coated applied Arabic numbers, which marks a striking departure from the previous rectangular case with Roman numerals and diamond indexes. There's a new date window at 6 o'clock, and a thin hand shows sweeping seconds. An open caseback allows you to see the fine finishings of Caliber 324 S C; the movement has a 45-hour power reserve and currently appears in several men's models. It comes in a steel or 18K rose gold case, both with diamond-set bezels, and a silk-inspired silvery dial or blue, grey or brown sunburst dials. The steel model with blue dial looks especially sporty, while Ref 7300/1201 in 18K rose gold brings the glamour with 469 diamonds on the bezel, lugs and bracelet.