Rotobox Single Watch Winder Modular Winding System
Everyone knows that at the heart of every good watch winder is a technologically superior motor. Which is why, for its top line of industry-leading watch winders, Underwood chooses motors from the Swiss company Maxon Motor AG, one of the world's leading providers of this type of motor technology. Maxon also supplies 39 of the 43 motors used to power the NASA "Spirit" and "Opportunity" Mars rovers.

High-quality Maxon A-max DC motors featuring high-performance permanent magnets power all Underwood winders. At the heart of every Maxon motor is the worldwide patented, ironless rotor "the System Maxon." This motor concept has many specific technical advantages, which for Underwood result in a low-noise, highly efficient motor with low power consumption.

Watch Winding Cycle of the Single Watch Winder
The most important feature of any watch winder is just that--the winding function. Underwood winders are programmed at optimal 4-hour repeating winding intervals: 30 minutes of clockwise rotation, followed by 30 minutes of counterclockwise rotation and then 3 hours of rest. The result is a 24-hour cycle, making Underwood watch winders ideal for all automatic watches, whether heirloom or modern. With an Underwood winder, your precision watches are ready to wear at a moment's notice.

The Underwood single watch winder operates on AC adapter (included) or battery power. LED light indicates when your unit is operational (even during rest cycles) or when your batteries need replacing.

A Beautiful Leather Single Watch WinderUnderwood watch winders are housed in the finest materials available. Following a tradition since 1926, these winders are finished with luxurious panels hand-crafted in Italy from carefully selected, naturally vegetable-tanned full grain leather in black or tan. Each case is accented with solid brass fittings decorated with the "Clou de Paris" found on all Underwood products.