original box mechanical watches bp maker 216570 42mm sapphire luminous calendar silver 316l steel asia 2813 automatic men wristwatch, 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. stainless steel is resistant to falling but not abrasion-resistant, so small wear marks are prone to appear adjust the calendar: please do not actively adjust the calendar between 22.00~2.00, this may cause damage to the movement qc quality inspection stable movement.syi