Reference:

• 5178G-012 White gold

Movement:

• Self-winding manufacture movement R 27 PS, 21,600 A/h
• 22K gold off-center minirotor
• Minute repeater
• Gyromax® balance
• Spiromax® balance spring
• 39 jewels
• 342 parts
• Power reserve 43-48 hours
• Patek Philippe Seal

Case:

• White gold
• ∅ 40 mm, H 10.53 mm
• Sapphire crystal
• Interchangeable solid and sapphire crystal case backs
• Humidity- and dust-protected only (not water-resistant)

Dial:

• Hand-guilloched swirling pattern beneath Grand Feu blue transparent enamel (flinqué enamel)
• White gold applied Breguet numerals
• 18K gold dial plate
• White gold Breguet-style hands

Functions:

• Hours, minutes, small seconds
• Minute repeater with chime on two “cathedral” gongs

Price (2026):

• €539,524