Advance Tech Winder (TM) with 12-function Analogue 1-knob control. Select one of the 12 functions for any brands of mechanical watches. LED light indicator to show operation status. One watch winding + 2 watch storage, with key and lock. Fuzzy logic programming. Japanese mechanism. 2-year worldwide warranty. High quality hand finished solid wood with high gloss finish. Patented self retractable cushion available.