The Patek Philippe Annual Calendar, introduced in 1996, has been a hallmark of success for over 20 years. This flagship model showcases an ingenious mechanism that requires correction only once a year while indicating the day, date, and month. The 38mm white gold case, set with 347 diamonds (~2.65 ct) and a crown adorned with 14 diamonds (~0.06 ct), exudes luxury. Its white Balinese mother-of-pearl dial features gold-applied numerals and houses the self-winding Caliber 26-330 S QA LU movement with a center sweep secondhand. Completed with a pale gray hand-stitched shiny alligator strap and a prong buckle set with 27 diamonds (~0.21 ct), this watch epitomizes elegant lines, noble materials, and meticulous craftsmanship.