Orbita Watchwinders - Sparta One Mini Open Watchwinder. Orbita Watchwinders - Sparta One Mini Open Watchwinder Operating on safe low voltage with a wall plug-in transformer, the motor and gearing system is what makes this AC design unique. We have coupled together an AC synchronous motor with a gearbox that reduces output speed to an unbelievably slow six revolutions per hour. Consequently, the output speed is only one revolution every 10 minutes. This winder is absolutely silent in operation and perfect for bedside use. Made in the USA by ORBITA Corporation.
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