642P
Ultra-thin hand-wound mechanical tourbillon movement
22.4 mm
Specific highlights
• Ultra-thin movement: 4 mm thick (4.5 mm including the carriage).
• The flying tourbillon gives the piece an undeniable elegance, with the carriage suspended from a
single axis just above the dial at 12 o'clock.
• The ultra-thin carriage (2.8 mm) weighs only 0.2 g thanks to its three titanium bridges.
• The visual effect produced by the flying tourbillon is accentuated by the presence of the Piaget "P"
initial. The asymmetrical nature of this decorative feature required meticulous development to ensure
the overall balance.
• Tonneau-shaped movement.
• Astronomical moon-phase, only 1-day discrepancy every 122 years.
6
28.6 mm
4 mm
642P
Ultra-thin hand-wound mechanical tourbillon movement, moon-phase indicator
Functions
Central hours and minutes.
Flying tourbillon at 12 o'clock.
Seconds indicated by the flying tourbillon at 12 o'clock.
Moon-phase indicator at 6 o'clock.
Finishing
Circular Côtes de Genève.
Hand-circular-grained plate and bridges.
Hand-bevelled and hand-drawn bridges and carriage.
Blued screws on bridges.
Jewels:
23
Components:
175
Movement thickness:
4 mm (4.5 mm including the carriage)
Casing dimensions:
12'''
3/4
x 10''' (28.6 mm x 22.4 mm)
Frequency:
21,600 vibrations/hour, 3 Hz
Power reserve:
approximately 44 hours
7