The jump from a classic to a smart wristwatch can be painful, which is why many people don't opt for it. Most smart watches are far from reaching the elegance of classic wristwatches. You can already see from Mars that you are carrying a computer. Well, a few examples can at least partly disprove us, but even these examples will not convince the most ardent fans of the classics. But they will be convinced by Chronos, a technological attachment in the form of a button battery that hides inconspicuously under the case and turns a classic wristwatch into a smart watch.
