Introducing the Patek Philippe Annual Calendar Chronograph, a pinnacle of horological excellence. This 40 mm timepiece is crafted from platinum and features a stunning blue opaline dial, accented by eight baguette diamond hour markers totaling approximately 0.23 ct, ensuring a sophisticated yet striking appearance. Powered by the self-winding Caliber CH 28-520 IRM QA 24H movement, this watch integrates a flyback chronograph and an annual calendar, providing exceptional functionality with a 55-hour power reserve. The platinum bezel is adorned with 36 baguette diamonds (~3.48 ct), enhancing its luxurious charm. The watch is complemented by a hand-stitched navy blue alligator leather strap, secured with a platinum folding clasp set with 22 baguette diamonds (~0.97 ct). With water resistance up to 30 meters and a sapphire crystal case back, the Patek Philippe ref. 5961P-001 is designed for those who appreciate the finest in craftsmanship and sophistication in their timepiece collection.