The World’s First Solar-powered Mechanical Watch

Developed by Cabestan Watches, ‘Sol Invictus’ is the solar-powered timepiece around the world. It features the new iconic chain and fusée, drums and vertical tourbillon, and also adopts the silicium crystals as efficient solar cells to generate sufficient power.

Its inner system is rather sophisticated- two brushless motors are used for rewinding the movement and setting the time, as well as a miniature controller for regulating the motors’ speed and amplifying the electrical charge. The motors and the rechargeable lithium-ion batteries are positioned under the solar cells. But wearing a price tag of $560,000, will the timepiece really be that popular? Hmm…It remains to be seen.

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