Chanel j12 unisex black ceramic s using a stunning combination of black high tech ceramic and stainless steel materials the38mm chanel unisex watch from the exquisite j12 collection offers a unique and innovative french inspired design infused with the elegance and sophisticated practicality of swiss horological engineering the chanel j12 timepiece is a self winding mechanical movement with a 42 hour power reserve which offers hour minutes and seconds functions with a date feature embod