The Patek Philippe Alarm Travel Time Ref. 5520P-001 is a sophisticated timepiece that seamlessly integrates a dual time zone system with a 24-hour alarm function, all housed within a sleek platinum case. Its ebony black sunburst dial features gold applied numerals with luminescent coating, ensuring optimal legibility. The watch is powered by the self-winding mechanical movement Caliber AL 30-660 S C FUS, offering a power reserve of up to 52 hours. The alarm mechanism utilizes a hammer striking a classic gong, delivering a melodious chime. The timepiece is presented on a black calfskin strap with a clevis prong buckle, combining elegance with functionality.