A mechanical chronograph watch contains a much more complex structure than a standard time-only watch. Due to the additional components required for timing functions, long-term use may lead to issues such as inaccurate timing, reduced power reserve, or malfunctioning chronograph functions.
This repair case involves an Omega Speedmaster Professional Moonwatch. The owner sent the watch for inspection after experiencing abnormal chronograph operation and unstable timekeeping.
Customer Background
The customer is a watch collector who had owned this Omega Speedmaster Professional for many years.
The watch was frequently worn and used as part of the customer’s daily collection. Over time, the owner noticed several problems:
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Chronograph function occasionally failed to start
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Stopwatch hands did not reset completely
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Increased timekeeping deviation
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Reduced running duration
Since the watch had been in continuous use for many years, the customer requested a complete inspection of the movement.
Initial Inspection and Diagnosis
The watchmaker first performed a detailed examination of the exterior condition and movement performance.
Inspection procedures included:
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Accuracy testing
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Chronograph function testing
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Power reserve evaluation
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Movement operating analysis
The results showed that the main issues were related to aging lubrication and wear within the chronograph mechanism.
Further examination identified:
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Old lubricants affecting component movement
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Increased friction inside the chronograph system
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Minor adjustment issues with the reset mechanism
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Reduced efficiency of the movement transmission
Chronograph Movement Disassembly
Due to the complexity of the chronograph mechanism, the movement required careful dismantling.
The servicing process included:
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Removing the movement from the case
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Separating the chronograph components
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Inspecting the column wheel and operating parts
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Checking the gear train and balance system
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Cleaning individual movement components
Each small component was carefully examined to ensure reliable performance after restoration.
Cleaning and Component Adjustment
After disassembly, all movement parts underwent professional cleaning.
The watchmaker performed:
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Removal of aged lubricants
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Cleaning of mechanical components
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Inspection of worn parts
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Precise lubrication application
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Chronograph mechanism adjustment
After servicing, the chronograph system operated more smoothly with improved response and stability.
Final Testing and Quality Control
Once the movement was fully assembled, the watch underwent extensive testing.
The final inspection included:
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Time accuracy testing
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Chronograph start and reset testing
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Power reserve monitoring
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Long-term operation checks
After professional adjustment, the Omega Speedmaster Professional returned to stable performance with fully restored chronograph functions.
Repair Summary
The Omega Speedmaster Professional is one of the most iconic chronograph watches in modern watchmaking history.
However, even legendary timepieces require professional servicing after years of operation. Regular maintenance helps:
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Maintain movement accuracy
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Preserve chronograph performance
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Reduce mechanical wear
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Extend the lifespan of the watch
A luxury mechanical watch is not only a timekeeping instrument but also a sophisticated piece of engineering that requires expert care.
Professional Watch Service
Professional watch servicing requires specialized equipment, technical expertise, and years of experience. Every luxury mechanical watch deserves careful inspection and precision maintenance by qualified watchmakers.
Professional Watch Service Centre
Specializing in luxury watch repair and maintenance with over 20 years of professional experience.
⭐ Over 20 years of watchmaking expertise
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Contact Us:
https://ptwatchservice.com/pages/contact
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