Movement dimensions: 30.25 x 28.45 mm
Thickness: 4.14 mm
Number of jewels: 32
Barrel arbour: AP 20 steel
Balance: Glucydur®, 4 arms, moment of inertia 4.8 mg•cm2, angle of lift 53°
Frequency: 28,800 vph (4 Hz)
Balance spring: elinvar by Nivarox®
Shock protection: INCABLOC 908.22.211.100 (transparent)
Escapement wheel jewels: Rubifix (transparent)
Stem with three positions: Manual winding, time setting, date adjustment
CASE
The design and execution of the watch demonstrate a holistic approach to conception of the movement, case and dial. The case is made from green Quartz TPT® and white Quartz TPT®, two remarkable materials with a unique finish obtained by layering hundreds of sheets of silica fibres using an automated process that changes the orientation of the weft between layers.
The front bezel sports the characteristic double Le Mans stripes. These have been created from separate pieces of white Quartz TPT® that have been inlaid into the green Quartz TPT® bezel – a first for the brand.
The tripartite case is water resistant to 50 metres, ensured by 2 Nitrile O-ring seals. The case is assembled using 12 spline screws in grade 5 titanium and abrasion-resistant washers in 316L stainless steel.
FINISHING
MOVEMENT
• Baseplate and bridges in hand-ground, wet sandblasted grade 5 titanium with Titalyt® treatment
• Anglage and polishing by hand
• Locking sections polished by hand
• Burnished pivots
• Diamond-polished sinks
• Pinions with undercuts
STEEL PARTS
• Sapphire-blasted surfaces
• Anglage and polishing by hand
• Screw slot and screws bevelled and polished with rounded and polished tip
WHEELS
• Concave chamfering with a diamond tool
• Circular-decorated faces
• Rhodium plating (before cutting the teeth)
• Minimal corrections to preserve the geometry of the wheels and their performance
OTHER FEATURES
DOUBLE-BARREL SYSTEM
The double-barrel system helps to improve torque stability over a longer period. This is achieved by distributing the stored energy across two winding barrels instead of one, which increases the number of rotations and reduces pressure on the teeth, bearings and pivots, resulting in better long-term performance.
FREE-SPRUNG BALANCE WITH VARIABLE INERTIA
This type of balance wheel represents the ultimate in innovation. It guarantees greater reliability when subjected to shocks and also during movement assembly or disassembly, hence better chronometric results over time.The regulator index is eliminated, and a more accurate and repeatable setting is possible thanks to 4 small adjustable weights located directly on the balance.
SPLINE SCREWS IN GRADE 5 TITANIUM FOR THE BRIDGES AND CASE
This permits better control of the torque applied to screws during assembly. These screws are therefore unaffected by physical manipulation during assembly or disassembly and age well.