Tourbillon, moon phase, mechanical
Manufacture Piaget 642P ultra-thin manual-winding mechanical movement flying tourbillon with moon phase.
Echoing the technical characteristics and record-breaking 3.5 mm measurement of the 600P tourbillon movement, the 642P movement is, just like its predecessor, the world's thinnest tourbillon movement. It features a flying tourbillon, positioned at 12 o'clock, whose carriage is accentuated by the presence of the stylised ""P"" of Piaget. The asymmetry of the design required meticulous adjustments in order to respect the balance of the whole movement. This carriage contains its regulating organ: the balance spring. The 642P movement is characterised by the addition of an astronomical moon-phase indicator at 6 o'clock. Governed by a gear train of extreme finesse, it will lose only one day every 122 years. Finally, the decorative elements such as the circular Côtes de Genève, the circular-grained mainplate, the bevelled and hand-drawn bridges and the blued screws keep with the distinctive aesthetic codes of the Swiss watch brand.
- Type : Mechanical hand-wound
- Shape : Rectangular
Functions : Moon phase indicator at 6 o'clock, Seconds, Hours, Minutes
Technical features : Flying tourbillon at 12 o'clock, Astronomical moon, Titanium carriage
Power reserve (in hours) : Approx. 40
- Frequency (vph) : 21,600
- Frequency (Hz) : 3
Diameter (lines) : 12.75 X 10
- Diameter (mm) : 28.6 x 22.4
- Number of jewels : 23
- Thickness (mm) : 4
- Number of components : 175
Finishing : Bridges circular-grained, drawn and bevelled by hand, Mainplate circular-grained by hand, Carriage bevelled and drawn by hand, Blued screws, Circular Côtes de Genève