At 43 mm in rose gold, this reference 5304-301R-001 houses Caliber R 27 PS QR LU — a self-winding mechanical movement delivering a minute repeater with classic gongs, a perpetual calendar with retrograde date hand, day, month, and leap year displayed in apertures, moon phases by hand, and small seconds. The case stands 13.3 mm tall, features white gold decorative inserts, and is finished with a sapphire crystal case back that reveals the movement within. Note that the case is humidity- and dust-protected only and is not water resistant.
The transparent sapphire dial keeps the architecture of the movement fully visible, with date and minute markers printed in white and accented by golden powdered dots. Adorning the bezel and lugs are 58 baguette diamonds totaling approximately 5.25 carats, while the fold-over clasp is set with an additional 22 baguette diamonds of approximately 0.97 carats — bringing the total diamond count to 80 baguette stones at roughly 6.22 carats combined.
The watch is presented on a hand-stitched shiny black alligator leather strap with square scales, secured by the diamond-set fold-over clasp described above. This is a rare opportunity to acquire one of Patek Philippe's most technically accomplished and visually striking Grand Complications references.