The 27.01 was the first extra-thin watch from Ming
link at just 38x6.9mm. The ETAPeseaux 7001 caliber was used as a base but the movement was modified by Ming's movement partner Schwartz-Etienne almost out of recognition. The
link only parts from the original movement retained for the Ming 7001
link MI were the going train and regulating components. After modification the movement gives an impression of transparency usually associated exclusively with openworked calibers.