Back cover for watch case, watch provided with the same and piece of jewellery

摘要

The base (1) of the watch (2) has a lower face (6) in contact with the skin such that the pressure surface of the base against the skin (8) is clearly less than the total surface area of the interior face. In order to achieve this one or several interstices are created between the wrist (8) and the base face (6) of the watch when it is worn. The interstices (7) are arranged so that they communicate with external air so that wrist perspiration can evaporate.