The self-winding Minute Repeater Reference 5178 is adorned with refined Rare Handcrafts showcased on the flinqué blue Grand Feu enamel dial. The white gold dial plate is finely hand-guilloched with a swirling pattern, before being coated with translucent enamel. The two "cathedral" gongs, twice as long as their traditional counterparts, give the minute-repeater a particularly rich and deep sound. The novelty is accompanied by two interchangeable straps – one in shiny peacock blue alligator leather; the other in shiny orange alligator leather.
Watch
Self-winding mechanical movement. 
Caliber : R 27 PS.  
Minute repeater with chime on two “cathedral” gongs. 
Small seconds.
Dial : Hand-guilloched swirling pattern beneath Grand Feu blue transparent enamel (flinqué enamel), gold applied Breguet numerals. 
18K gold dial plate.
Case : White gold. 
Diameter: 40 mm. 
Height: 10.53 mm. 
Humidity- and dust-protected only (not water resistant). 
Interchangeable solid and sapphire crystal case backs.
Strap : Alligator leather with square scales, hand-stitched, shiny peacock blue (originally fitted). Alligator leather with square scales, hand-stitched, shiny orange (additional strap). 
Fold-over clasp.
Minute repeater. 
Diameter: 28 mm. 
Thickness: 5.05 mm. 
Number of parts: 342. 
Bridges: 10. 
Jewels: 39. 
Power reserve: min. 43 hours - max. 48 hours. 
22K gold off-center mini-rotor. 
Balance: Gyromax®. 
Vibrations/hour: 21 600 (3 Hz). 
Balance spring: Spiromax®. 
Hallmark: Patek Philippe Seal.