The caliber 8901 movement is a self-winding movement with of course George Daniels' Co-Axial escapement and anti-magnetic up to (at least) 15,000 gauss. Due to the use of special alloys, the movement itself is anti-magnetic unlike some other anti-magnetic watches that are using specific case constructions (soft iron core) in order to swiss replica watches be resistant to magnetism. And yes, magnetism is one of the worst enemies for a cheap ray ban outlet mechanical watch, in case you are wondering what the fuzz is about. Magnetism is everywhere and magnetic fields have become replica watches uk bigger due to the use of all sorts of electronic devices (tablets, laptops but also think of airports and other places rolex replica with a lot of equipment). Caliber 8901 has a 60 hour power reserve due to the use of two barrels in series. This 8901 caliber has an 18 carat Sedna gold rotor and balance bridge. The finishing is the same as the often discussed caliber 8500 and 9300 movements.