Gyrotourbillon I: technical characteristics
Diameter: 36.3 mm
Height: 10.85 mm
Parts: approximately 500
Jewels: approximately 100
Barrels: two with sapphire-crystal lid
and base
Power reserve: 150 hours
Balance-wheel: monometallic in 14-carat gold with outlying setting screws in 14-carat gold
Spiral: quality I, freely oscillating Breguet
Oscillating speed of the balance-wheel: 21,600 vibrations an hour (3 Hz)
Spherical tourbillon: 13.86 mm diameter, 0.336 grams, approximately 90 parts
Rotation speeds: exterior cage in aluminium 1 minute interior cage in titanium and aluminium 2.5 rotation per minute
Anti-shock devices: six
Indication of the leap year ON THE BACK OF THE CASE!
Case: Platinum, 43 mm in diameter, 14.9 mm in height including the sapphire crystal
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