To pay homage to their third invention, the Tourbillon 24 Secondes Incliné, Robert Greubel and Stephen Forsey have taken on the challenge of housing a watch mechanism, combining complex and innovative techniques within an unprecedented architectural setting.
The third invention consists of a single tourbillon cage inclined at a 25° angle and performing a rapid rotation in 24 seconds. This utterly original mechanism guarantees the watch maximum efficiency and optimal performance on the wrist. Invention Piece 3 features a totally unconventional display with the plates themselves serving as the base for the timekeeping indicators. The four gold plates are engraved with a portion of a personal message from Robert Greubel and Stephen Forsey providing an insight into the complex process involved in creating the extraordinary mechanism of this third invention.
TECHNICAL DATAS
Tourbillon 24 Secondes Incliné, hours and minutes display,
Seconds display and power-reserve indicator.
Unique series of 33 pieces
Movement dimensions
• Diameter : 36.40 mm
• Thickness : 11.51 mm
Number of parts
• Complete movement : 370 parts
• Tourbillon cage: 87 parts
• Weight of the cage : 0.39 g
Number of jewels
• 42
• Olive-domed jewels in gold chatons
Power reserve
72 hours
Barrels
Rapid rotating twin barrels (1 turn in 3.2 hours) equipped with a slipping spring to avoid excessive tension
Balance wheel
Variable-inertia with gold mean-time screws (10 mm diameter)
Frequency
21,600 vibrations/hour
Balance spring
• Phillips terminal curve
• Geneva-style stud
Main Plates Nickel silver
Sources from World Tempus
