At the heart of this Grand Complications piece lies the Caliber R 27 Q, a mechanical self-winding movement that tracks the day, date, month, and leap year cycle entirely by hands. The 42mm platinum case stands 12.2mm tall and features an interchangeable full back alongside a sapphire-crystal case back, granting a view of the movement at will. The case is humidity and dust protected.
The dial is rendered in authentic black enamel set on an 18K gold dial plate, with gold applied Breguet numerals lending a classical character to the layout. Every element of the dial composition reflects a commitment to traditional haute horlogerie craft.
Completing the watch is a shiny black alligator strap with square scales, hand-stitched and secured by a fold-over clasp. Reference 5374P-001 represents a considered expression of Patek Philippe's Grand Complications lineage in platinum.
