Inside and visible through a somewhat incongruous display case back is a Miyota 9015 automatic movement which replica Richard Mille is common at this price point and higher these days and has always been a reliable movement in the examples that I've owned and reviewed. With 42 hours of power reserve hacking hand-winding Replica Richard Mille rm 011 and a rate of 4 Hz the 9015 makes fausses Richard Mille rm 63 perfect sense for the Atlas and should be both entirely reliable and easy to service when the time comes.