Do you never read the instructions for your new phones or your new refrigerators? On the other hand, we cannot advise you enough to read them carefully for luxury watches. In particular, you will learn how to use the various options and functions of your timepiece. For example, simply setting the date on your watch at the wrong time can affect its operation. In fact, on automatic watches fitted with calendars, certain parts of the movement are in action precisely between 9:00 p.m. and 3:00 a.m. to manage the date change. This period is therefore considered the “death zone” for setting the time.
This type of problem becomes more and more complex with the number of complications that a watch like the Rolex GMT master II can have. Each complication activates different parts, and all of the watch components work together in harmony. Each use of the functions and settings of the different aspects interferes in the general operation. This is why you should carefully read the advice and instructions in the user manual, which are often available on the internet when buying a vintage or second-hand watch without a manual provided.
Among the other essential use tips that you will find in the manual, we will certainly talk about the conditions of the clock (if your watch is one, that goes without saying). Never use the clock when the watch is submerged to prevent water from seeping in when you press the push-button supposed to start the Chrono.
Once infiltrated, water can rust some parts of the movement and permanently damage the watch or dial. To avoid all this, and if you still need to measure the time of your dive, all you have to do is use the rotating bezel, often unidirectional, to avoid any accident following improper handling underwater. (Yes, we know, purists will say that a diving watch with pushers is an aberration, but that is not the point).