
Single Axis Tourbillon


The single axis tourbillon was invented by Abraham-Louis Breguet in 1801 to counteract the effects of gravity in pocket watches and improve their rates. Pocket watches were generally carried in the vest pocket in a vertical position, which was why Breguet’s invention only worked on pocket watches in this position. Once the watch was laid flat, on a table for instance with the dial up or down, the entire effect of the tourbillon was voided and no longer affected the rate.
Technical Details
Special features
· Flying tourbillon construction
· Movement, Caliber TP 3W6A.1, designed and constructed in-house
· First single axis tourbillon wristwatch with constant force mechanism in the carriage
· Tourbillon is secured in a specially designed flexible spring to absorb shocks
01
Movement Information
Diameter
Height
Number of components
Weight of smallest screw used
Number of jewels
Frequency
Number of spring barrels
Plates and bridges
Balance wheel
Balance spring
Power reserve
Number of subdials
Functions
37 mm
5.43 mm
277
0.0009 grams
37
21,600 beats per hour (3 Hz)
two
gold-plated brass, hand-engraved with Guilloché Triangulair
copper-beryllium CuBe2
flat hairspring
40 hours
two
hours, minutes, seconds
03
Distribution of Bearing Jewels (First Axis)
Balance
Escapement
Constant force mechanism
Axis
Drive shaft
Arm
Movement
Time indication system
Drive mechanism
5
4
4
2
2
​
10
10
02
Tourbillon
Number of axis:
Height of tourbillon rotation
Revolution time:
Constant force mechanism
System of constant force
Constant force reloading
Diameter of balance wheel
Diameter of cage
Tourbillon weight
one
12.2 mm
one minute
in tourbillon cage
inertia acceleration according to Jaenneret
6 times per second
9.5 mm
13.4 mm
0.347 grams
04
Case Details
Case
Crystal
​
Dimensions
Dial
​
​
​
Height
Water resistance
Strap
Buckle
platinum 950 or 18-karat gold
convex sapphire crystal on front and back, anti-reflective on both
sides, hand-engraved with individual number
43 mm x 43 mm
1.2 mm solid silver, hand guilloché with Guilloché Triangulair
18-karat gold applied indexes
18-karat gold dauphine-style hands
18-karat gold hand-engraved name and number plate
12.3 mm
1 ATM (10 meters)
hand-cut and –sewn black alligator skin uppers and lowers
platinum 950 or 18-karat gold