Same methods, same quality controls, same brand‑level standards.
Since 2025, our workshop in Aix‑en‑Provence has been officially recognized as a Certified RALF TECH Technical Center dedicated to pre‑owned watches. This endorsement validates our watchmakers’ expertise and guarantees brand‑spec service: rigorous diagnostics, genuine parts, water‑resistance procedures and final controls identical to RALF TECH’s requirements.
What we do for your RALF TECH
Upon reception, we run a full diagnostic: movement health, regulating organ, crown/pusher wear, caseback seal integrity, bezel and bracelet condition, and water‑resistance check. You receive a clear, itemized estimate.
The service includes disassembly, cleaning and lubrication of the movement, replacement of consumables (gaskets, crown/pushers if needed), rate adjustment and precision testing. Depending on the reference, we perform the appropriate service for automatic, quartz or hybrid models. Case and bracelet receive a careful cosmetic refresh (non‑invasive satin/polish) that preserves edges and factory character.
Water‑resistance is tested on a pressure bench with a progressive protocol, before and after service. Your RALF TECH is returned with test results and care recommendations.
Certified process, genuine parts
We follow RALF TECH procedures and tolerances, use the proper tooling and, where required, genuine parts. Every job is traceable. You benefit from an in‑house service warranty on the performed work.
In Aix‑en‑Provence, across France and Europe
You may drop off your watch at our boutique in downtown Aix‑en‑Provence or ship it from France or Europe using insured mail. At delivery, we provide full traceability and test reports.
Buying a RALF TECH at Mostra
Our pre‑owned selection is serviced in‑house and delivered with a Mostra Certificate of Authenticity. Watches sold by Mostra come with a Mostra 3‑year warranty and priority after‑sales support.
Frequently asked questions about RALF TECH repair and maintenance
All RALF TECH civilian collections (automatic, quartz, hybrid), subject to parts availability and the watch’s overall condition.
It depends on the model and parts. We provide an estimate with your quote and share updates at key milestones.
We test water‑resistance according to the model and intended use. When validated, it appears on your test report.
Yes. We are certified to handle pre‑owned RALF TECH beyond the factory warranty or without original papers, after diagnostic.
Always. No work starts without your written approval.
Discover our selection of pre-owned RALF TECH watches
Revised, ready-to-wear pieces, with certificate and 3-year Mostra guarantee.