ZF factory's top IWC V2 version Portuguese super slim portuguese meter IW371440

ZF IWC V2 version Portuguese super ultra-thin Portuguese meter IW371440. 40.9mm diameter. 12.3mm thick. Black belt/brown belt. It took up to 18 months to overcome many difficulties to develop and replicate the genuine A79350 movement. The improvement achieved by using the improved movement is . First, the case thickness before the genuine match (only 12.3 mm) because the 7750 movement thickness limit shell body is 13.5 mm . Second, the head and the upper and lower two timing keys are parabolic (previously vertical line) after the improvement of the overall more coordinated perfect. 100% restore the style of genuine Confucianism. Third, the assembly sequence and structure of the three-piece ring, middle shell, and bottom cover are the same as the original product (all are fixed by screws)