Patek Philippe has attired the World Time Minute Repeater Reference 5531 in white gold. The dial center is adorned with a new cloisonné Grand Feu enamel motif depicting one of the famous steamships of the Belle Époque fleet still sailing on Lake Geneva today. The result is an entirely hand-made miniature Rare Handcrafts masterpiece. Launched in 2017, this model has established itself as the first minute-repeater that always chimes local time. The caseband and the minute-repeater slide piece feature a hand-guilloched hobnail pattern emblematic of Patek Philippe. The skeletonized lugs ensure an unobstructed view of this guilloché work.

Grand Feu cloisonné enamel center with steamboat cruising on Lake Geneva. 18K gold dial plate and 24-hour ring. White gold. Case and slide piece with hand-guilloched hobnail-patterned decoration. Skeletonized lugs. Diameter: 40.2 mm. Height: 11.49 mm. Humidity and dust protected only (not water resistant). Interchangeable solid and sapphire crystal case backs. Alligator leather with square scales, hand-stitched, shiny blue-green. Fold-over clasp. Minute repeater with two classic gongs. Local time strike. Minute repeater with two classic gongs. Local time strike. World Time. 24-hour and day/night indication for all 24 time zones.

Minute repeater with classic gongs. Local time strike. World Time. 24-hour and day/night indication for the 24 time zones. Diameter: 32 mm. Thickness: 8.5 mm. Number of parts: 452. Jewels: 45. Power reserve: min. 43 hours – max. 48 hours. Winding rotor: 22K gold off-center guilloched mini-rotor. Balance: Gyromax^®. Frequency: 21,600 semi-oscillations/hour (3 Hz). Balance spring: Spiromax^®. Hallmark: Patek Philippe Seal.