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.
Mechanical hand-wound movement, Calibre GF 01n
Tourbillon 24 Secondes Incliné, hours and minutes display,
Seconds display and power-reserve indicator.
Unique series of 33 pieces
• 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
• Olive-domed jewels in gold chatons
Rapid rotating twin barrels (1 turn in 3.2 hours) equipped with a slipping spring to avoid excessive tension
Variable-inertia with gold mean-time screws (10 mm diameter)
• Phillips terminal curve
• Geneva-style stud
Main Plates Nickel silver
Sources from World Tempus