Every 2 years: The maintenance service
We recommend that you have your watch serviced every two years, or following a negative water-resistance check, to ensure that:

Your watch is fully water-resistant
The movement remains in perfect working order.

Every 3-6 years: The complete overhaul
Depending on the model, the climate, and how your watch has been used, we recommend carrying out a full service every 3-6 years. This will include:

A complete overhaul of the movement (dismantling, checking functions, replacing worn parts etc.)

A full running inspection and water-resistance check.