Patek Philippe Grand Complications Reference 5374/300P-001 Perpetual Calendar Minute Repeater in Solid Platinum with Haute Joaillerie Baguette Diamond Setting, Blue Lacquered Dial with Black-Gradient Rim, Baguette Sapphire Hour Markers and Baguette Diamond Minute Markers, Self-Winding Patek Philippe Caliber R 27 Q Automatic Movement with Cathedral Gongs, Interchangeable Solid and Sapphire Case Backs, Shiny Dusk Blue Alligator Strap with Diamond-Set Platinum Fold-Over Deployant Clasp, 42mm.

The 42mm solid platinum case, curved lugs, and slide-piece minute repeater mechanism are fully integrated within a Haute Joaillerie execution of exceptional refinement. The bezel and flange are set with 120 baguette-cut diamonds totaling approximately 7.10 carats, while the caseband and slide piece are adorned with an additional 86 baguette-cut diamonds totaling approximately 3.50 carats. The dial flange is further accented with 13 baguette-cut sapphires weighing approximately 0.72 carat, creating depth and contrast against the lacquered blue dial. In total, the case and clasp are set with 228 baguette-cut diamonds totaling approximately 11.62 carats. A discreet diamond is set into the platinum case at 6 o’clock, signifying the metal’s exclusivity. The lacquered blue dial with black-gradient rim features baguette sapphire hour markers, baguette diamond minute markers, and white gold leaf-shaped hands with luminous coating. The 18kt gold dial plate supports the perpetual calendar indications, including day, date, month, leap year, and 24-hour display by hands, along with a moon phase aperture. The case measures 12.28mm in thickness and is fitted with interchangeable solid and sapphire crystal case backs.

This Patek Philippe 5374/300P-001 is powered by the self-winding Patek Philippe caliber R 27 Q movement. Constructed with 467 individual components and 39 jewels, the movement integrates a minute repeater with two cathedral gongs and a perpetual calendar complication within a single architecture. The off-center 22K gold guilloched mini-rotor provides automatic winding efficiency while preserving case thickness. The movement includes a Gyromax balance, a Spiromax balance spring, and oscillates at 21,600 semi-oscillations per hour (3 Hz). It carries the Patek Philippe Seal and delivers a power reserve of approximately 38 to 48 hours.

Reference 5374/300P-001 represents the union of two of Patek Philippe’s most revered Grand Complications—perpetual calendar and cathedral minute repeater—executed in platinum and elevated to Haute Joaillerie standards. The luminous geometry created by baguette diamonds and sapphires against the deep blue lacquered dial produces a dimensional effect rarely achieved in high complication watchmaking. This is not simply a timepiece; it is a technical and gem-setting masterpiece reserved for the most discerning collectors.

Reference 5374/300P-001