The energy for a quartz watch is supplied by a battery that lasts for several years. The battery supplies energy to the quartz, which measures time. The average battery life for J12 quartz watches is two to four years depending on the model, and two years for other collections.
Never leave an expired battery in your watch, as it could leak and damage the movement.
Self-winding mechanical movement:
A watch with a self-winding mechanical movement winds itself with the movement of the wrist, which causes the oscillating mass to turn on its axis. When the watch is not worn, it has a power reserve of 38 to 42 hours depending on the model. Beyond this, manual winding becomes necessary. When the watch has stopped, it is recommended that you wind your watch manually every three weeks to avoid the oil in the movement from drying out.
For optimal precision and reliability, we recommend that you avoid:
- Magnetic fields such as magnets, loudspeakers, tablets and smartphones;
- High impact activities, such as sports that require sudden movements.
The watch must be perfectly adjusted to your wrist. A poorly fitting bracelet may result in the loss of the watch’s self-winding capacity.
For more information, please refer to our care and maintenance recommendations in our Care & Services section.