Every mechanical watch tends to assume this state, or maximum rest when its charge has been exhausted - and this is perfectly natural for a watch.
In the case of quartz-based calibers, the presence of a battery or an accumulator can represent a real risk for the watch, since exhausted batteries can sometimes deform and lose their content, which corrodes the delicate electronic circuits. A mechanical watch instead does not run this risk: at most, it stops. The problem arises, however, with oiling.
The mineral oil used nowadays in mechanical watches tends, over time, to dry out, becoming thinner and thinner and no longer performing its function of lubrication. This means that if you plan to leave a watch idle for a long time, it's wise to consider an overhaul before returning to full, continuous use. Most manufacturers agree on an interval between overhauls of about five years to keep your watch in perfect working order.