This is the first time in the history of tourbillon with tantalum alloy case. The name of this metal is derived from a Greek myth about Tantalus ("Torment of Tantalus"). Tantalum alloy has the characteristics of wear and scratch resistance, in the production of very challenging.
Watch with a beautiful chrome blue dial, it seems like a mirror, the color will change with the light. It is equipped with FPJourne own 18K rose gold movement, with constant force device and seconds display.
The ONLY WATCH Charity Auction will be held in Geneva on November 7, 2015.
TOURBILLON SOUVERAIN BLEU _ Technical Specifications
Movement: movement number FPJourne 1403
Movement with 18K rose gold casting
Manual winding, 20 turns
Movement size: Overall diameter: 32.40 mm
Movement Diameter: 32.00 mm
Overall thickness: 7.15 mm
The main core height: 2.53 mm
Thread the core: S1.20 mm
Balance balance wheel: 4 adjustment weight
Anachron balance spring, Phillips bifurcation
Balance spring balance bolt
No speed needle
Hairspring welded to the pile
Gossamer at the other end of the folder in the pile
Frequency: 21,600 hph, 3 Hz
Inertia: 11.00 milligrams per square centimeter
Escape fork swing: 52 °
Balance wheel swing: the surface up, full chain:> 280 °
Surface up, the remaining 24 hours:> 280 °
Main features: Tourbillon, with constant force device and seconds display
Two-stage crown
Hold the crown in position 1 to get the watch on the chain
Pull the crown out to position 2 to adjust the time
Escapement system: 15 teeth escapement wheel
90 ° pallets
The display: hour and minute hands at 3:00 position
Small seconds at 6:00
Power reserve display at 12:00
Power reserve: 42 hours, +/- 2 hours
Grinding modified: bridge for circular stripes polished
The main plate is decorated with Geneva ripples
All screws are top polished and chamfered
Caliper round for grinding
Case: Tantalum alloy (only one)
Diameter: 40 mm
Thickness: 9.90 mm
Dial: Chrome blue (only one)
Parts: Movement, without the dial: 179 pieces
Movement with case and strap: 218 pieces
Gems: 26