The IWC Pilot's Watch Mark XX is one of the most recognizable pilot's watches in the luxury watch industry. Designed for excellent legibility, durability, and precision, it is powered by IWC's in-house automatic movement and built to withstand everyday wear.
This service case demonstrates how routine maintenance restored the performance of a well-used Mark XX after years of continuous use.
Customer's Concern
The customer had worn the watch almost every day for over five years without any major servicing.
Recently, the following issues became noticeable:
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Daily timekeeping had become inconsistent.
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Power reserve seemed shorter than before.
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Manual winding felt less smooth.
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The rotor produced a louder sound during movement.
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The watch occasionally stopped after being left overnight.
To prevent additional wear, the customer requested a complete inspection.
Initial Inspection
After performing timing tests, our watchmaker opened the case and carefully examined the movement.
The inspection revealed:
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Lubricants had significantly deteriorated.
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Dust had accumulated inside the automatic winding system.
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Minor wear was present on several gear pivots.
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The mainspring barrel required fresh lubrication.
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Waterproof gaskets had begun to harden with age.
Fortunately, all major movement components remained in excellent condition and required no replacement.
Service Procedure
The complete overhaul included:
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Full movement disassembly
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Ultrasonic cleaning of every component
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Inspection of the escapement and gear train
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Cleaning of the automatic winding mechanism
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Replacement of all waterproof gaskets
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Application of premium Swiss lubricants
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Precision movement reassembly
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Timing regulation
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Water-resistance pressure testing
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Multi-day accuracy and power reserve testing
Every stage of the service was performed according to professional watchmaking standards.
Final Results
Following the overhaul, the watch returned to excellent operating condition.
Performance improvements included:
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Stable daily accuracy
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Smooth manual winding
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Full automatic winding efficiency
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Restored power reserve
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Successful water-resistance testing
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Improved overall movement stability
The customer was pleased to see the watch performing almost like new again.
Why Preventive Maintenance Matters
Even high-end mechanical watches require routine servicing to maintain peak performance.
Having a complete maintenance service every 3 to 5 years helps:
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Preserve timekeeping accuracy
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Reduce internal component wear
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Maintain waterproof performance
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Extend the lifespan of the movement
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Protect the long-term value of the watch
Preventive servicing is far more cost-effective than repairing damage caused by prolonged neglect.
Professional Watch Service
Professional Watch Service specializes in luxury watch repair and maintenance with over 20 years of professional experience.
⭐ Over 20 years of professional watch servicing
⭐ Transparent pricing with no hidden fees
⭐ Fast turnaround time
⭐ Personalized maintenance recommendations
Contact Us:
https://ptwatchservice.com/pages/contact
The content and images in this article are provided for watch culture and informational purposes only. The service case has been anonymized. Images are sourced from publicly available resources and official brand websites. All rights belong to their respective owners.
