Several vendors provide different components for the watch. I forget who provides the dial, case/bracelet, hands etc., but Ronda makes the movement for the MM, Hollow Point, 12 Gauge::
http://www.ronda.ch/en/our-quartz-movements/startech/startech-5000/caliber/?type=1321625610&tx_hfronda_pdf%5Bproduct%5D=80&tx_hfronda_pdf%5BcompletePDF%5D=0&tx_hfronda_pdf%5Baction%5D=dataSheetPdf&tx_hfronda_pdf%5Bcontroller%5D=Pdf&cHash=52881b253393d138fe6a99c0020aa390
Some others used Swatch Group brand movements such as ETA and Valjoux, so it depends on which watch you're asking about. The above movement is for the MM since you mentioned that model specifically.