luxury mens waterproof watches 216570 42mm calendar mechanical automatic black dial silver stainless steel bracelet original box paper sapph, Slivery;brown

after receiving the watch, you should rotate it anticlockwise, and then rotate it clockwise for 30 cycles to reserve energy for normal operation. the internal function of the new mechanical watch is almost zero, and it needs to be manually wound before wearing it for the first time quality assurance,if there is any problem after purchasing,you can send a message to the seller..syi