The Patek Philippe World Time Chronograph Ref. 5930G-001 is a landmark creation that unites two of the brand’s most esteemed complications—the world time and the flyback chronograph—within a single remarkable timepiece for the first time in Patek Philippe’s modern history . Introduced at BaselWorld 2016 and inspired by a unique 1940s world timer chronograph, this 39.5mm 18K white gold masterpiece combines the technical intrigue of its in-house automatic Caliber CH 28-520 HU with a dramatically finished, vivid blue hand-guilloché dial . The dial is a study in functional artistry: a 24-city ring on the outer rim pairs with a 24-hour display and day/night indication, allowing simultaneous reading of time in all global zones . Meanwhile, the flyback chronograph is operated via a central seconds hand and a 30-minute totalizer at 6 o’clock, with column-wheel actuation and a 21K gold central rotor . The 39.5mm white gold case maintains a contemporary 12.86mm profile, with winglet-style lugs and fluted pushers that exude classic Geneva elegance , while the sapphire crystal caseback reveals the movement’s impeccable finishing . Completed with a blue alligator leather strap and an 18K white gold deployant clasp , and offering 30 meters of water resistance , the 5930G-001 is a modern grail for the discerning collector who demands both the ultimate travel companion and the precision of a high-end chronograph—a synthesis of world-time travel and precise timekeeping that testifies to Patek Philippe’s mastery in grand complications .