The official agent will have been selected by Michel Herbelin as a professional who is able to provide you with the most suitable advice in all aspects of the company's watches. The agent will have long experience of his or her trade and will provide you with professional advice and assistance whenever you need it.

To keep your watch in good working order, it is worth following a few simple servicing guidelines.
- Rub it gently with a soft cloth to get rid of dust and other marks.
- When you change the battery, ask your official agent to service your watch and test the water-resistance.
- For the guarantee to remain valid, watertightness needs to be checked at least once a year.
- Wash your watch in fresh or soapy water if you have been using it in the sea or swimming-pool.

- When your watch is wet or in the water, you should never attempt to use any of the push-pins to adjust the time, etc.
The push-pins should be kept in the pushed-in or locked-down position.
Avoid exposing the watch to sudden changes in temperature, such as diving into a cold pool on hot day.
- After swimming in the pool or the sea, wash your watch in clean water.
- For your own peace of mind, you should have the watertightness of your watch checked every year, and each time the case is opened.

- Your battery will last two years on average.
- Prolonged use in chronometer mode will reduce battery life.
- Watches with a centre second hand will show your battery is running out by jumping five seconds instead of one.
- You should go to an official agent to have the battery changed.