Franck Muller Curvex Service – Crystal Replacement & Case Polishing

When a Franck Muller watch arrives at the workshop, it is never a simple task. In this particular case, we had a Curvex with a caliber 2800, which had suffered a serious blow, resulting in the complete breakage of the crystal, severe damage to the case, and the immediate risk of debris entering the movement.

The first image clearly shows the situation: the crystal is broken, with cracks extending across its entire surface. In such cases, the priority is not aesthetics, but protecting the machine and preventing further damage.

Disassembly & damage inspection

The watch was completely disassembled. The case was carefully opened to remove all the crystal fragments without damaging the dial or hands. The fact that the dial was kept in perfect condition is a testament to both the quality of Franck Muller's craftsmanship and the correct initial assembly.

The Franck Muller Cal. 2800 movement, with its characteristic 950 platinum rotor segment, was removed and examined in detail. Despite the impact, no structural damage was found, but a complete service was deemed necessary, as microparticles and vibrations can cause wear over time.

Complete service of Cal. 2800 engine

The engine was completely dismantled. All components were professionally ultrasonically cleaned, checked one by one, and re-lubricated according to the manufacturer's specifications.

Special mention should be made of the counterweight, marked "Rotor Segment Platine 950" — an element that combines functionality and high-end watchmaking. After assembly, the movement was adjusted for optimal chronometric performance.

Crystal replacement

The new lens was selected to perfectly match the characteristic curve of the Curvex frame. Proper fit in such frames is critical: even the slightest deviation can affect both watertightness and aesthetics.

Once in place, the dial once again revealed its unique geometry and Franck Muller's iconic numerals, without any distortion or reflection.

Polishing & restoration of frames

The gold case had deep scratches and signs of wear. It was completely polished, with absolute respect for the original lines and curves of the design. The goal was not to achieve an "excessive shine," but to restore the case to its factory appearance.

The result is a mirror-like surface with correctly accentuated edges and no loss of material.

Final inspection & watertightness

After final assembly, the watch underwent a water resistance test, ensuring that it is fully protected for everyday use. The final visual and functional check confirmed that the watch was returned to its owner in perfect mechanical and aesthetic condition.

This service is a prime example of how a high-end watch can, with the right care and expertise, be restored not just to working order, but to a state of true rejuvenation.