All of the Rotobox automatic watch winders from Underwood are powered by high-quality Maxon A-max DC motors each featuring high performance permanent magnets. At the heart of every Maxon motor is the world-wide patented, ironless rotor "the System maxon®". This motor concept has many specific technical advantages, which for Underwood results in a low-noise, highly efficient motor with low power consumption.
At Maxon all major components are manufactured in-house using custom-built machinery and key technologies in the areas of winding techniques, gearhead design and injection moulding technology. Having provided the motors for the SOJOURNER rover in 1997, the Swiss company is again involved in NASA's current expedition on Mars. Both of the Mars rovers "SPIRIT" and "OPPORTUNITY" feature 39 maxon motors among their 43 electromotors.
The decision to use the Swiss motors was based on their excellent performance in the Pathfinder rover and because of their high efficiency.
Bear in mind that the motors used in the NASA missions are themselves standard products with diameters of 20 and 25 mm and only required minor modifications in order to be able to deal with the extremely harsh conditions. The equipment must be able to withstand enormous temperature changes from ca. -120 °C to + 25°C, vibrations, and the very special atmospheric conditions. Small wonder then that Underwood chooses to use this type of advanced technology for its products.
From superior technology to luxurious handcrafted designs, it is easy to see why Underwood makes the best automatic watch winders and boxes.
Underwood watch winders protects your valuable automatic watch investment by proper winding. Buy the best watch winders available for the care of your luxury collector's watches.
