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The world's first solar powered mechanical watch. It uses a highly efficient silicon wafer solar lithium battery as the driving energy, using a new bracelet, journals, drums and vertical tourbillon. The internal structure of the watch is also quite complex: two brushless motors power the mainspring rewind and set time respectively, and a small controller is used to adjust the motor speed and amplify the electronic signal. Such a luxurious high-tech watch is expected to sell for $560,000.
ZXS SEALING PRODUCTS FACTORY , https://www.zxs-seal.com