Many watch lovers like to buy watches from brands that have a certain influence. But we're going to tell you some must-know things that, if you ignore them, can damage a love watch.
The picture above is the well-known Rolex classic, this watch with a calendar has one of the most important points about maintenance, which is to understand: the date of the calendar watch cannot be adjusted at will during which periods. You can go to the official ** of the movement to check the relevant information.
Let's take Japan's Meiyuda mechanical movement 8215 as an example, first enter **: enter the homepage and enter 8215 to query, find the basic data--- there is very important information in the following one**. 
First of all, the accuracy of the time is -20 seconds +40 seconds. If the time difference exceeds this range, it means that the watch needs to replace the battery (quartz watch) or adjust the spring (mechanical watch), if it does not work no matter how you adjust it, it means that your watch needs to be repaired.
Second, the number of diamonds is 21. Everyone knows the value of diamonds, so I won't talk about it here. Therefore, even if the movement is broken one day, don't sell the watch cheaply, let alone leave the watch everywhere. By the way, some movements are divided into "gold" and "white", and the "gold" is more expensive than the "white--- because the gold machine has to add the cost of gold plating.
Third, the last item in this table, and the one that is most easily overlooked--- setting the calendar and day of the week. This is a very clear way to tell you exactly what time it is, and don't set the calendar or day of the week at this point in time.
How?Do the above three points open your mind?At the very least, you have the right to know the model of the movement in this watch as soon as you buy it, and then go to the official website of the movement to check the relevant information, and use the core knowledge we taught you today.
That's all for today's sharing, to learn more, please continue to pay attention to the "watch core"**I think it is helpful to you and friends** and share.