waterproof mens watches automatic machine 41mm day 904l stainless steel strap sapphire luminous glass man wristwatch dhgates, Slivery;brown

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 after receiving the watch, you should rotate it anticlockwise, and then rotate it clockwise for 30 cycles to reserve energy for normal operation. stainless steel is resistant to falling but not abrasion-resistant, so small wear marks are prone to appear.syi