The very bold and and very gold style of this chronograph kinda screams 1970s, but regardless of what you think of the exterior, inside sits one of the all time great movements - the Valjoux 236. This uses a column wheel for smooth operation, and has a high 21,600 bph beat rate for accuracy. Interestingly, unlike many other chronographs, the hammer in this movement only makes momentary contact with the register cams when the reset pusher is pressed. A separate brake is used to fix the central chronograph second hand. This was likely done to enable engineering of a flyback variation, the Valjoux 235.