Orbita Sempre 1 Watch Winder

Brand new with all papers and warranty

Manufacturer: Orbita

Model: Sempre 1

Retail Price: $2,995.00

Available Finish: Maple Burl

Description: The winder is housed in an elegant maple burl veneer case with an plate glass viewing panel. The case is provided with a solid brass, gold-plated lock whose fold-up latch also serves as a lifting handle. All hardware is also solid brass, with all exposed parts gold-plated and lacquered for durability. As an alternate choice, a fine hand-stitched brown or black cowhide leather case is also available.

The SEMPRE watchwinder is the first and only watch winding device that will keep any hand-wound mechanical watch with an accessible crown, fully wound when unworn. This recently patented design is truly unique in that it replicates the human action of finger winding a watch by rotating the winding crown similarly in a clockwise direction.

The SEMPRE design substitutes a mechanical finger arrangement, called a "collet", which grasps the watch�s crown securely and rotates it in the same clockwise direction. Several different size collets are provided to fit any watch crown diameter from 3 to 7 millimeters. These collets are custom made of Acetal plastic to prevent scratching or marring of polished watchcase surfaces.. The collet is mounted in a rotating tubular drive shaft, supported by low-torque precision ball bearings, and powered by a tiny D.C. motor through a techno-polymer drive gear system fitted with a safety slip clutch. The collet is opened by pushing a spring-loaded plunger at the opposite end of the drive shaft. Releasing the plunger closes the collet on the watch crown.

Interestingly, the SEMPRE winder will also wind "self-winding" automatic watches when they are unworn. The winding action of an automatic watch differs from a hand-wound mechanical watch in that there is a built-in slip-clutch in the mainspring mechanism watch to prevent over winding rather than a finite stop as in a hand-wound. In this case, the timing circuit of the SEMPRE comes into play as there may not be enough current draw increase to signal the system to shut-down automatically. Either way, this hybrid control circuit provides redundant safety for winding any type of mechanical watch; hand wound or automatic.