If your Swiss quartz watch has got fast or their hands have got out of usual pace (for example, began to jump through several divisions at once), so it is a sign that it's time to change the battery. Don’t wait till the watch stops, for the discharged battery may leak and make the expensive watch worthless.
It would seem that changing the battery is quite a simple task. But a Swiss watch is not a household item which can be the object of some experiment at leisure time. The advice that all watch brands and masters give unanimously is “Do not attempt to change the battery yourself!”
Battery change in Swiss watches is a procedure that requires a special tool (a watch screwdriver with a flat tip or a watch key) and special skills. Apart from, this procedure involves a number of associated stages, skipping of which can cause damage to the watch – immediately or in the nearest future.
Here are a number of consequences that are usually cited as reasons why we should not change the battery independently:
1. Inappropriate choice of a battery
Swiss quality presupposes proper quality of batteries. As a rule, manufacturers use Renata batteries. These are high-quality batteries and, like all good things, they often become objects of fakes. Buying the battery yourself, you are at risk of purchasing a fake or a defective battery. And the use of a failed battery can lead to its fast discharge or, even worse, to oxidation or leaking, and therefore to damaging the watch.
Official service centers serving Swiss watches guarantee installing genuine batteries that have been tested for energy output and functionality before the installation. Apart from, experts can select a proper model of the battery, which will be suitable for your watch.
2. Damage of the case and the movement
Swiss watch is a sophisticated device, created and assembled in accordance with quality standards. As a rule, the case cover is not just screwed, but treated with a sealant, which prevents getting of dust into the watch movement. Opening the case personally, especially with non-professional tools, you not only run the risk of scratching and damaging the body or parts of the movement. But you can also violate water resistance, and this can lead to further clogging and breakdown. Often having opened the watch for battery change their owners can't shut the cover back, and still turn to service centers for assistance.
3. The refusal of providing the warranty service
Having opened the watch personally or in an uncertified repair shop, you break the warranty agreement. This relieves the manufacturer or the authorized service center of all obligations under warranty service and repair. Savings on the least can result in larger costs in the future.
Battery change involves a number of procedures that are followed by experts in all service centers:
4. Case examination
Before opening the back cover its type is checked and appropriate tools are selected. Tightness of the case is also previously checked.
5. Battery check
The battery drawn from the watch is checked. Possibly it’s not the cause of the watch’s wrong work.
6. Checking the current consumption
Current consumption of the movement is also checked. Increased consumption can be a symptom of a more serious breakdown. In this case there is no use in changing the battery immediately, for it will be quickly discharged. It is necessary to define and eliminate the cause of the increased energy consumption.
7. Installing a new battery
After installing a new battery the precise current time is set and validity of extra watch functions is analyzed.
8. Tightness restoration
After closing the case its tightness is tested again and, if necessary, is restored in accordance with the standards of the manufacturer.
The battery in Swiss quartz watches is recommended to be changed at least every two or three years. If the period of the battery service life expires, and there are no obvious signs of the battery discharging, anyway it's better to be changed in advance. This way you will keep your Swiss watch safe and sound.