During our annual visit to Orbita at this year’s Las Vegas watch and jewelry shows, we saw an impressive collection of new and existing winders of all sizes, holding anywhere from a single watch to as many as 48. And of course, the vast majority of these and most other winders are equipped to supply power to automatic (that is, self-winding) watches by rotating them at regular intervals so the rotors in the watches’ movements can continually supply energy to their mainsprings. But what about watches that don’t have rotors… and whose mainspring can only be wound via the watch’s crown? Fortunately, thanks to Orbita’s cleverly engineered Sempre model, owners of manual-wind timepieces have a winder made specifically for their needs. The Sempre is, according to the company, the only such winder on the market. It is intended to wind, without ever overwinding, virtually any manually wound mechanical watch. It does so with precision collets (basically, mechanical fingers) that grasp the watch’s crown and replicate the action of finger winding. As it does so, an ingenious microprocessor control senses the increasing resistance as the mainspring is being wound and automatically stops winding when the watch approaches the fully wound state. The Sempre is in a single ($2,995) or double ($4,995) model, in either burl or black leather finish. Collectors with weary fingers from the daily ritual of keeping their watches running perpetually might wish to give these a look.