This elegant manual-wind Montblanc Meisterstück arrived at our certified watchmaking workshop in Geneva for a complete service.
The owner reported low amplitude, irregular performance, and insufficient water resistance during the initial pressure test.
Before any intervention, we carried out a Witschi timing analysis along with a full technical diagnostic to accurately assess the condition of the movement and its components.
Diagnostic Upon Reception
During the initial inspection, several issues were identified:
Insufficient Performance
- Amplitude significantly below expected values for a manual-wind movement (minimum threshold reached)
- Irregular power reserve
Insufficient Water Resistance
- Failed water-resistance test
- Aged gaskets no longer providing adequate moisture protection
Mechanical Wear
- Dry lubrication in multiple areas of the movement
- Light oxidation on screws and internal surfaces
- Friction at the escapement level, reducing overall precision
These findings made a full service essential in order to restore the performance and longevity of the Montblanc calibre.
Work Performed in Our Geneva Workshop
Our watchmakers carried out a complete restoration according to Swiss manufacture standards.
✔ Complete movement disassembly
✔ Ultrasonic cleaning
✔ Lubrication according to Montblanc technical specifications
✔ Precision adjustment
✔ Water-resistance test
✔ Final Witschi testing
Result After Service
Following the complete restoration:
✔ Amplitude restored and stabilized
✔ Smooth and reliable movement operation
✔ Power reserve returned to normal
✔ Improved precision
✔ Water resistance compliant with model specifications
✔ Case aesthetics preserved
This Montblanc Meisterstück has regained its original elegance and precision, ready to accompany its owner for many years to come.
Probable Causes of the Issues
Why had the watch lost performance?
- Natural ageing of lubricants (after 4–5 years)
- Everyday micro-shocks
- Exposure to humidity due to compromised water resistance
- Light internal oxidation caused by lack of regular maintenance
- Extended use without servicing, leading to excessive friction
Mechanical watches — particularly manual-wind models — require regular full servicing to prevent internal wear.
Owner Recommendations
To preserve the performance of your Montblanc:
✔ Complete service every 4–5 years
✔ Annual water-resistance test
✔ Avoid water exposure (not designed for immersion)
✔ Protect from thermal variations and shocks
✔ Wind the watch gently on a daily basis
