Watches FAQ about watches

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By how much should the accuracy of my mechanical watch deviate each day?

The amount by which the rate of a mechanical watch deviates depends on several crucial factors. These are: the quality of the movement, the wearer's habits or the influence of extreme fluctuations of temperature. But as a rule, a watch in which everything is technically in order may be up to ten seconds fast per day.

What is a chronometer?

Translated from the Greek, the word “chronometer” means measurer of time. Only precision watches that are extremely accurate and meet strict international criteria may be termed chronometers. The independent Swiss authority, Controlle Officiel Suisse des Chronomètres (COSC), tests watches over a period of 15 days in five different positions and at three different temperatures.

What is a chronograph?

Literally, a chronograph is a “writer of time”. We can use a chronograph to tell the time of day but also to measure periods of time.

Can a sapphire crystal get scratched?

Yes, a sapphire crystal can also get scratched? Sapphire has a value of 9 on the hardness scale. Only diamond, with a value of 10, is harder. Which means that sapphire can be scratched with a diamond or equally hard material. The building material concrete contains corundum, which is also rated 9 on the hardness scale.

How long will my watch remain water-resistant?

A watch is considered water-resistant if it has fine seals on the glass, crown and back that protect the high-precision movement against water and humidity. Water-resistant watches that are regularly exposed to water should be tested for tightness every two years. An official retailer will carry out this test free of charge. The elasticity of seals may be impaired after two years. Other external influences, such as hand cream, perfume and soap, can also have a negative effect on them.

When should I take my watch for servicing?

Every machine, no matter how small, requires occasional servicing. A delicate watch movement with up to 200 individual parts is lubricated at various points with tiny amounts of oil and grease. These small amounts of lubricant dry out with time or are used up by the functions of the watch movement. If the movement is dirty and dry, it may start to become inaccurate and/or its power reserve may be diminished. These are the first signs that a maintenance service is needed. Your mechanical or electronically powered watch should be serviced every four to six years. Afterward, the watch will show the time precisely again in hours, minutes and seconds.

Does an automatic watch also need to be manually wound?

An automatic watch that is worn daily by a person with normal arm movements does not require manual winding. But it should be remembered that in the case of an automatic watch that has run down and stopped, simply shaking the watch and setting the time is not enough. Having a mainspring with virtually no tension is unfortunately not quite the same as having a little gas in the tank of a racing car. We therefore recommend turning the crown a few times to give the movement that extra bit of power it needs to perform correctly.
Tip: When setting the hands on a watch with a date display, be sure to get the correct half of the day. Otherwise, the date will advance while you are having lunch.

What is the first thing you should do if you notice condensation or water under the watch glass?

Contact an authorized retailer immediately. He can dry your watch on the spot and tell you whether the humidity or water has already damaged the movement or not.