Introduced in 2026, the Patek Philippe Complications 7129J-001 stands out as a striking yellow gold variant of the World Time model. This watch features a vibrant carmine red dial paired with a matching strap, elegantly showcasing a 24-time-zone display. Its case, made from yellow gold, has a diameter of 36 mm and a thickness of 8.83 mm, complemented by a non-gemset bezel and a sapphire crystal case back. The timepiece is designed to withstand water up to 30 meters.

The lacquered carmine red dial boasts a hand-guilloched old-basket-weave pattern in its center. For the local time display, hour markers crafted from yellow gold and lozenge-shaped hands are utilized. Additionally, the city disk, also in carmine red, has city names printed in white. The layout ensures that the local time for the city at 12 o'clock is shown centrally, while the surrounding zones indicate their respective times across all 24 time zones. At the heart of the watch lies the Patek Philippe calibre 240 HU, a self-winding movement that is exceptionally thin, offering 24-hour and day/night indications for all time zones. This movement measures 30 mm in diameter with a thickness of 3.88 mm, composed of 229 parts, 33 jewels, and features a central 22K gold mini-rotor for winding. It operates at a frequency of 21,600 semi-oscillations per hour and provides a power reserve of at least 48 hours. The World Time mechanism, adapted from the system invented by Louis Cottier in the 1930s, incorporates a patented push-piece correction system at 10 o'clock, ensuring all time displays can be adjusted simultaneously. The luxurious finishing is completed by a shiny carmine red alligator leather strap that showcases square scales and is secured with a yellow gold prong buckle.