Mechanical wristwatches are coveted collector’s items. And thanks to the diversity of interesting objects, enthusiastic wearers often own more than just one wristwatch with classic inner workings. These objects lie in the safe or display case and wait to be used. Before putting the wristwatch on, the mainspring must be wound, the hands must be adjusted and the date must be set. For models with full calendar in particular, this may take a little time. With the watch winders from the Rotalis series, Erwin Sattler is offering an alternative, which provides optimum conditions for the quality pieces, guarantees a high level of technical performance and, of course, is a piece of jewellery itself.