- The exterior is constructed of fine natural hard wood, hand-polished to a high gloss PE finish has durability and beauty.Noise-Isolating: upgraded components reduce the annoying sound. motor inside is long lasting, extremely silent when running.Strong and durable, can effectively prevent scratch, high transparency and good safety.If you own fancy, collectible, beloved, or merely sufficient self-winding watches, you may want to invest in a watch winder.