ZENITH

Certified Zenith Watch Service in London

El Primero • Chronomaster • Defy • Pilot — expert servicing, chronograph overhauls & restoration in Central London

Your Zenith blends high-frequency precision with iconic design—and it deserves specialists who understand it inside out. At Watch Service Piccadilly, we deliver Zenith repair and servicing in London backed by 25+ years of experience across El Primero, Chronomaster, Defy, and Pilot models, from modern references to cherished vintage pieces.

Our workshop performs complete movement overhauls for calibres such as El Primero 400/3600 and Elite 670/679, precise chronograph servicing & regulation, sapphire crystal replacement, crown, pusher & gasket renewal, bracelet sizing & clasp repairs, and professional water-resistance testing. We fit genuine Zenith parts to protect accuracy, maintain waterproof integrity and safeguard long-term value.

Conveniently located inside Piccadilly Circus Underground Station (Unit 9), we’re Central London’s trusted destination for Zenith watch repair and restoration—renowned for fast diagnostics, Swiss-level craftsmanship, and meticulous case/bracelet refinishing in stainless steel, titanium and ceramic.

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Zenith Repair Piccadilly — Our 6-Step Process

At Watch Repair Piccadilly, our expert watchmakers bring over 25 years of Swiss horological experience to every Zenith service. From the legendary El Primero chronograph to the modern Defy and Chronomaster lines, we ensure precision, longevity, and craftsmanship worthy of Zenith’s heritage.

Precision at Every Step

1. Battery Type Identification

We determine the exact Swiss battery or movement configuration for your Zenith — whether quartz or mechanical — ensuring correct voltage, compatibility, and energy efficiency for long-term reliability.

2. Careful Case Opening

Using Zenith-specific tools and torque control, we open the case safely to protect gaskets, threads, and seals, maintaining the watch’s waterproof integrity and precision assembly.

3. Movement Service & Calibration

We perform a complete mechanical overhaul on calibres such as El Primero 400, Elite, and Zenith Defy movements — including cleaning, oiling, and regulation — or fit premium Swiss batteries for quartz references.

4. Timing & Precision Testing

Each serviced Zenith undergoes timing accuracy, amplitude, and chronograph calibration tests on Swiss timing equipment to ensure it meets or exceeds chronometer-grade performance.

5. Waterproofing & Pressure Test

We replace seals and perform pressurised water-resistance testing to factory standards — vital for models such as the Defy Extreme and Chronomaster Sport.

6. Final Inspection & Finishing

Each Zenith is subjected to a meticulous final inspection — verifying power reserve, hand alignment, and finishing quality. We restore the case and bracelet to its original Zenith factory sheen for a flawless return.

Zenith Repair Piccadilly — FAQs

+ How often should I service my Zenith watch?
For optimal performance, we recommend a complete Zenith service every 4–6 years for automatic or chronograph models like the El Primero and Chronomaster. Quartz Zenith watches should receive a battery replacement and reseal every 1–2 years. Regular waterproof testing is advised for Defy and other sport collections.
+ Can you replace the sapphire crystal on my Zenith watch?
Yes—our experts offer Zenith sapphire crystal replacement using genuine or OEM-grade components with anti-reflective coatings where applicable. After fitting, we reseal and pressure test your watch to maintain its water resistance and aesthetic clarity.
+ Do you perform water resistance testing after servicing?
Absolutely. Every serviced Zenith undergoes gasket renewal, resealing, and pressurised water testing using both wet and dry methods. This ensures accurate water resistance for timepieces like the Defy Extreme and Chronomaster Sport.
+ What is the turnaround time for Zenith watch repairs?
Our usual timelines are: battery & reseal — same day; crystal replacement — 3–5 business days; and complete service/overhaul — 10–14 days. Complex El Primero chronographs or vintage Zeniths may take up to 3–4 weeks depending on parts availability.
+ Are your watchmakers certified to repair Zenith watches?
Yes—our Swiss-trained horologists have extensive experience servicing El Primero, Elite, and Defy calibres. Each repair follows factory-approved standards using Zenith-specific tools and Swiss precision timing instruments.
+ Do you use genuine Zenith parts for repairs?
We use authentic Zenith components wherever available, or Swiss OEM alternatives approved for your model. All parts are sourced to preserve your watch’s originality, water resistance, and long-term value.
+ Is there a warranty on your Zenith repair services?
Yes—every Zenith repair is backed by a 12-month warranty covering both parts and workmanship. Please note that accidental damage or water ingress following improper handling is not included.
+ How can I book a Zenith watch repair in Piccadilly?
You can book your Zenith service online, call 020 3951 0266, or visit our service centre inside Piccadilly Circus Underground Station (Unit 9, London W1J 9HS). Walk-ins are welcome for inspection and same-day minor repairs.
+ Do you offer polishing or refinishing for Zenith watches?
Yes—we provide professional polishing and case refinishing for all Zenith timepieces, including stainless steel, titanium, ceramic, and gold variants. Our process restores the original finish and sharp factory lines while maintaining authenticity.