Orbita Watch Winders

The SEMPRE winder will also wind "self-winding" automatic watches.

This winder is so sophisticated the owner of an $800,000 wristwatch uses it! Read about it here...

Orbita is now winding the world's most complicated watch.  Click for details.

Orbita Sempre
Single Watch Winder

5.1"h x 9.7"w x 7.8"d

The SEMPRE watchwinder is the first and only watch winding device that will keep virtually any hand-wound mechanical watch with an accessible  crown fully wound when unworn.

It replicates the human action of finger winding a watch by rotating the winding crown similarly in a clockwise direction.

Collets are custom made of  acetal plastic to prevent scratching or marring of polished watchcase surfaces.

For safety purposes, the drive system is  fitted with a mechanical slip-clutch which has been factory set to slip at a safe torque.

In operation, the winder automatically turns on every twenty-four hours. Upon actuation, the drive motor begins rotating the collet for 8 minutes.  With the collet rotating at approximately 6 rpm, this provides a maximum of 48 crown rotations per day. However in practice, the actual number of rotations is controlled by the current feedback circuit whose priority is to shut down the motor based on torque, rather than by time.

Operating by battery, the winder can be stored in a safe for 10 to 12 months without attention. Alternately, the winder may be powered with the high quality "switcher" type AC/DC converter supplied with each unit, which operates at any voltage from 90 to 240 VAC, 50 or 60 hertz and provides perfect 6 VDC.