Dial
Sapphire crystal with blue metallization and black-gradient rim, white gold applied faceted “obus”-style hour markers. White gold faceted dauphine-style hands.
Case
Platinum. Diameter: 40.2 mm. Thickness: 13.23 mm. Diamond set at 6 o’clock. Humidity- and dust-protected only (not water-resistant). Interchangeable solid and sapphire crystal case backs.
Strap
Calfskin, fabric pattern, hand-stitched, navy blue. Platinum fold-over clasp.
Movement
R TO 27 PS QR
Manual winding
Minute repeater with chime on two classic gongs
Tourbillon
Perpetual calendar with retrograde date hand
Day, month and leap year in apertures
Moon phases
Small seconds
Diameter: 28 mm. Thickness: 8.61 mm. Number of parts: 506. Number of jewels: 28. Power reserve: min. 38 hours – max. 48 hours. Frequency: 21,600 semi-oscillations/hour (3 Hz). Balance spring: Breguet. Distinctive sign: Patek Philippe Seal.