Service Intervals — When & How Much

Like a car, a mechanical watch needs periodic servicing to stay accurate and protect its movement — as a rule of thumb every 5 to 10 years, depending on the brand and movement. Quartz watches mostly need timely battery and gasket changes rather than full overhauls.

How often should a watch be serviced?

Manufacturers publish intervals, and improved lubricants have stretched them in recent years. Real-world conditions — heat, water, dust, and how often you wear it — matter as much as the number on paper.

• Standard mechanical movements: roughly every 5-7 years
• Modern Rolex and Omega co-axial calibers: often 8-10 years between full services
• Quartz watches: a new battery every few years, with a gasket check at the same time
• Vintage pieces (pre-1990): every 3-5 years, as older seals and lubricants age faster

These are guidelines, not deadlines. A watch that keeps good time and holds its power reserve can safely run toward the longer end of its range; a watch showing symptoms should not wait.

What actually happens during a service?

A full service is a complete overhaul, not just an oil top-up. That is why proper servicing takes weeks and costs what it does.

• The movement is fully disassembled into individual components
• Every part is cleaned ultrasonically and inspected for wear
• Worn parts — mainspring, gaskets, sometimes jewels — are replaced
• The movement is reassembled, re-oiled with fresh lubricants, and regulated on a timegrapher
• The case and bracelet are cleaned, gaskets renewed, and water resistance pressure-tested

How much does a service cost?

Cost scales with the complexity of the movement and who does the work. A simple three-hand automatic from an affordable brand is inexpensive to service; a chronograph or perpetual calendar from a luxury maison costs far more, because it takes far more skilled hours. Complications such as minute repeaters and perpetual calendars are the most expensive of all. Always get a written estimate before authorizing work, and factor servicing into the true cost of ownership before you buy.

What are the signs my watch needs a service?

• It gains or loses noticeably more time than usual — more than about 10-15 seconds a day for a standard movement
• The power reserve drops; it stops sooner than it used to after a full wind
• Moisture, fogging, or condensation appears under the crystal — treat this as urgent
• The crown feels gritty, stiff, or crunchy when winding or setting
• The seconds hand stutters or the movement makes an unusual noise

Condensation is the one symptom that should never wait: water inside a case corrodes the movement quickly, and a same-week visit to a watchmaker can be the difference between a gasket change and a rebuilt movement.

Who should service my watch?

The brand's own service center guarantees genuine parts and preserves collector value, though it can be slower and pricier; a reputable independent watchmaker is often faster and cheaper and, for vintage, may better preserve originality. Either way, start by knowing exactly what you own. If you are unsure of the model or reference, the AI Watch Identifier app can identify a watch from a photo so you can look up its recommended service interval — just treat the result as an AI estimate to confirm with a professional, not a substitute for a watchmaker's inspection.