Using your Tissot watch is easy. Just adjust the time according to the instructions that came with it. For the watches with leather straps, avoid getting them wet for long periods as it can damage the leather. When it comes to water - resistant watches, although they can handle splashes and short dips, don't wear them for deep - sea diving. To keep your watch looking its best, clean the case and crystal regularly with a soft, dry cloth. If you notice any issues with the movement or timekeeping, take it to a professional watch repairer. Also, make sure to replace the battery as needed to ensure continuous operation.