There’s something deeply satisfying about getting under the bonnet of your own watch. Whether it’s a treasured family piece or a well-used daily wear, attempting minor repairs at home might feel like a smart and budget-friendly move.
With countless how-to videos and toolkits available online, it’s tempting to think that all repairs can be managed with steady hands and a bit of patience. But with delicate mechanisms and often irreplaceable value, the wrong fix can cost far more than the watch is worth.
To help you avoid expensive mistakes, this guide covers what’s safe to tackle yourself and what’s better left to a professional. Read on before you pick up that screwdriver.
Understanding What Makes Watch Repairs Tricky
Mechanical watches are more than just timekeepers. They’re miniature machines containing dozens or even hundreds of intricate components. Even quartz models, while simpler, still require care when handled.
In the UK, over 60% of watch owners wear their watches daily, according to retail surveys. That regular use means parts can wear, loosen, or degrade over time. Attempting repairs without the correct tools or knowledge may worsen the damage, void warranties, or reduce resale value.
Watchmakers spend years training, often earning certification through institutions like the British Horological Institute. That’s not just to master tools, but also to understand the tolerances and timing of each movement. A single slip of the hand can put a gear out of alignment or damage the hairspring beyond repair.
Safe DIY Repairs You Might Try
There are a few basic tasks that, with the right approach, you can handle confidently. These should always be carried out with a clean surface, good lighting, and non-magnetic tools.
Adjusting or Replacing the Strap
Changing a leather strap or bracelet is one of the most common and beginner-friendly fixes. Spring bar tools help release the pins without damaging the lugs. This is also a chance to clean hidden grime around the case edges.
If your new strap doesn’t fit properly, consider getting it adjusted at a shop. Forcing a tight bracelet on can leave scratches or warp the spring bars.
Battery Replacement for Quartz Watches
For quartz watches, replacing the battery is possible with the right case opener and anti-static gloves. Always check the battery type printed on the existing cell.
However, take care with snap-back cases or waterproof seals. Improper sealing may result in condensation or dust inside the case. A misaligned back can also cause the movement to jam or drain power quickly.
Light Cleaning
You can use a soft cloth, a toothbrush, and warm soapy water to gently clean stainless steel cases or bracelets. Dry thoroughly before wearing. Avoid soaking leather straps or using alcohol-based cleaners on acrylic crystals.
Never try to polish a watch dial or movement. These are fragile surfaces and can be easily ruined.
Repairs You Should Avoid at Home
Some fixes may appear simple on the surface but carry risks that outweigh any potential savings. Here’s where most DIY jobs go wrong.
Opening the Case Back of Mechanical Watches
Inside a mechanical watch is a tightly packed assembly of gears, coils, and jewels. These components are sensitive to dust, moisture, and even static electricity. Opening the case without a dust-free environment risks damaging the movement or introducing foreign particles.
Many watchmakers work in controlled environments using anti-static mats, pressurised air, and magnification. That’s not something you can easily recreate at your kitchen table.
Attempting to Regulate Timekeeping
If your automatic watch is running fast or slow, you may be tempted to adjust the regulator. But turning the wrong screw or applying too much force can cause major damage. Regulating involves micro-movements and is done with timing machines that measure accuracy in real time.
Even if it seems easy on YouTube, don’t risk it. A small miscalculation could cost hundreds in repairs.
Water Resistance Testing
Replacing a gasket or seal might seem like a quick job. But resealing a case to ensure water resistance requires specialist pressure-testing machines.
Without proper testing, even splashes during hand washing may cause internal fogging or corrosion. For dive watches, this is especially critical. Service centres often reject warranty claims if the seal has been tampered with outside of approved service.
Polishing the Case or Crystal
Polishing tools can quickly destroy a brushed finish or distort a plastic crystal. Home kits don’t offer the same control as professional polishing lathes. In some cases, you may even thin out the case back or lugs without noticing.
If you’re determined to freshen up the case, opt for a gentle clean and leave deeper scratches to a repair specialist.
When It’s Worth Paying a Professional
Not every service costs a fortune. For example, battery changes at reputable jewellers often range from £15 to £30, and include resealing. More advanced services like a mechanical overhaul may cost upwards of £150, but it can extend the life of your watch for years.
Think about your watch’s value both financial and sentimental. If it’s vintage, limited edition, or from a premium brand like Rolex, Omega, or Tudor, a service history from a certified repairer can help maintain its value.
Professional repairs also typically include a warranty. That alone offers peace of mind you won’t get with DIY efforts.
How to Find a Reliable Watch Repair Service
Seek out repairers affiliated with the British Horological Institute or members of the Federation of Small Businesses. Many jewellers also partner with certified repair centres. Ask for a written estimate, turnaround time, and warranty details before leaving your watch.
Check online reviews and forums to ensure a repairer has a good track record. Some independent shops may even specialise in certain brands or models.
Final Thought
It’s perfectly natural to want to care for your watch. After all, it’s on your wrist day in, day out. Simple tasks like changing straps or light cleaning help keep your timepiece in good shape without risk. But once you move beyond the surface, precision and training matter more than enthusiasm.
If you’re unsure, it’s better to ask a professional than take a chance and regret it later.
