REVIEW: Patek Philippe Patek Philippe timepiece designed from generation to generation. In order to long-term heritage, it is recommended that your watch every five years (non-waterproof watches for three years) regular maintenance, to keep your timepieces best. In order to maintain the value of your Patek Philippe timepiece, regular maintenance is crucial. Watch maintenance may only be made by Patek Philippe authorized service centers. Patek Philippe Patek Philippe timepiece designed from generation to generation. In order to long-term heritage, it is recommended that your watch every five years (non-waterproof watches for three years) regular maintenance, to keep your timepieces best. In order to maintain the value of your Patek Philippe timepiece, regular maintenance is crucial. Watch maintenance may only be made by Patek Philippe authorized service centers. The following small series will explain the maintenance guide: Quartz watches and mechanical watches: (either manually or automatically winding) every five years (non-waterproof watches for three years) to be maintained once. However, since the quartz watch battery can only be used for two to three years, the quartz watch should be timely sent to an authorized service center to replace the battery. Waterproof watch recommended waterproof test every year. This simple process can be completed in just a few minutes at a point-of-sale with the right equipment. Patek Philippe authorized service center to carry out the maintenance fee for one year warranty. Any maintenance by unauthorized agents will be made Patek Philippe warranty terms expired. In order to ensure the long-term Patek Philippe watch features, it is recommended that users: Carefully read the user guide and follow the maintenance instructions. Every year or every time you turn on your watch, watch the watchmakers authorized by Patek Philippe to check the water resistance. For manual winding watch, watch once a day, preferably in the morning. Make sure that the watch band meets its intended purpose and is correctly sized to the wrist at the time of purchase. Avoid wetting alligator straps or leaving it exposed to the sun for long periods of time. Avoid changing the watch to a rapidly changing environment. Avoid all kinds of watch impact and collision (in the event of a serious collision, please check the waterproof performance). Avoid wearing the watch in activities that may cause repeated strong vibrations. Avoid wearing jewelry and watches on the same wrist. Avoid placing mechanical watches in magnetic fields to avoid disrupting watch settings. Prohibit the use of underwater control function, buttons or time to set the crown, the water, the watch should not be dry before doing so. After each manual operation, make sure that the time setting crown and the buttons are restored to their original positions. In the sea or the pool after using the watch must be rinsed with fresh water watch .