A watch may stop functioning properly for a number of reasons: shock, worn components, moisture ingress or movement malfunction. When a problem appears, the intervention of an experienced watchmaker is essential to restore proper operation.
In Aix-en-Provence, the Mostra Store watchmaking workshop repairs automatic, manual-winding and quartz watches, including luxury, vintage and collector’s timepieces.
Our watchmakers carry out a full diagnosis in order to identify the source of the problem and determine the work required to restore your watch.
Why can a watch stop working?
Mechanical, automatic and quartz watches can encounter different types of malfunctions during their lifespan. Some issues are linked to the natural wear of the movement, while others may be caused by impact or a loss of water resistance.
The most common problems include:
- A watch that stops or will not start
- A significant loss of accuracy
- A movement that is blocked or running irregularly
- A problem with the crown or winding system
- A damaged crystal or case
- Moisture ingress inside the watch
For an automatic watch, please tell us about repeated stopping while worn, an unusually short power reserve or irregular winding. Explain when the symptoms occur: after the watch has been left unworn, during normal use or following an impact.
In every case, a diagnosis carried out by a watchmaker makes it possible to identify the exact cause of the problem.
Movement repair and parts replacement
Depending on the diagnosis established by the Mostra Store watchmaking workshop, different operations may be required to repair a watch. Each intervention is carried out with precision in order to preserve the integrity of the movement and the characteristics of the model.
Repairs may include:
- Repair or replacement of movement components
- Adjustment of the movement's accuracy
- Replacement of the crystal or certain external parts
- Repair of the crown or winding system
- Work on the watch’s water resistance
The workshop prioritises original parts. Depending on the component and sourcing options, parts that meet the movement’s specifications may also be used. Whether the work can be carried out depends on the availability of suitable parts, particularly for vintage or collector’s watches.
Repair of luxury, vintage and collector watches
The Mostra Store watchmaking workshop works on many watches from major watchmaking houses. Thanks to our experience in collectible watchmaking, we are used to handling both contemporary models and older timepieces.
Our watchmakers regularly repair watches from brands such as Rolex , Omega , Tudor , Cartier , Chanel , Jaeger-LeCoultre and Panerai .
Antique or vintage watches sometimes require a more cautious approach, especially when it is important to preserve a dial, patina, case or original components. For these pieces, read our page on precautions before any intervention on a vintage or antique watch.
Each intervention begins with a careful analysis of the movement in order to identify the repairs required.
Diagnosis before repair
Before any intervention, the Mostra Store watchmaking workshop carries out a diagnosis of the watch. This step helps identify the origin of the fault and assess the operations required for repair.
The assessment and quote are free of charge. Your quote sets out the proposed work and its cost and remains valid for three months. No fee is charged if you decide not to proceed. Repairs begin after your approval.
If you are not yet sure whether your watch requires repair, servicing or a simple check, you can read our page dedicated to watch diagnosis and quote in Aix-en-Provence.
How long does watch repair take?
Repair time depends on the nature of the problem, the movement’s complexity and the availability of the required parts. Some interventions may take several weeks.
The workshop provides an estimated turnaround time. This is indicative and may change depending on findings during the work or parts availability.
A repair example: a Rolex Submariner
When the Mostra workshop examined a 2001 Rolex Submariner 14060-M, testing revealed a water-resistance issue associated with the crown tube. Replacing the tube and gaskets, followed by a further test, restored the watch’s water resistance.
This intervention is documented in the Mostra Observatory 2026.
Watch repair - Aix-en-Provence
Located in the heart of Aix-en-Provence, the Mostra Store watchmaking workshop welcomes enthusiasts and collectors who wish to have their watch repaired. You can bring your watch directly to the boutique for a diagnosis and personalized support.
Our team advises you on the most suitable repair solutions in order to restore the functionality and reliability of your watch.
Frequently asked questions about watch repair
A watch can stop for various reasons: worn components, impact, lack of lubrication or a winding issue. A diagnosis helps identify the exact cause of the problem.
Yes, vintage watches can be repaired, provided that the necessary parts are available or can be replaced with compatible components.
The cost depends on the problem identified, the work required and any replacement parts. The assessment and quote are free, with no fee if you decline the proposed work. Your quote remains valid for three months.
A service is preventive maintenance carried out periodically, while a repair is required when a fault or malfunction has been identified.
Watch servicing comes with a three-year warranty. Batteries are covered for one year. For other repairs or replacement parts, please contact the workshop to confirm the terms applicable to the proposed work.
Entrust your watch repair to the Mostra Store workshop
Is your watch malfunctioning or in need of repair? The Mostra Store watchmaking workshop in Aix-en-Provence can help diagnose and repair your timepiece.
Not sure what is causing the problem? Before any repair, our watch diagnosis service helps identify the likely cause of the malfunction and the work required. For a broader overview of your watch’s overall condition, you can also discover the Mostra Watch Health Record and its 12-point inspection protocol.
If your watch is still running but requires preventive maintenance, you can also discover our watch servicing in Aix-en-Provence .
If your watch also requires the replacement or fitting of a new strap, discover our watch strap replacement service in Aix-en-Provence .