Product of nickel-phosphorus, It's also insensitive to magnetic fields. The movement is equipped with the optimized blue Parachrom hairspring, made by Rolex inside of a paramagnetic alloy. The blue Parachrom hairspring is supplied with a Rolex overcoil, guaranteeing the calibres regularity in any placement. The oscillator is fitted about the https://elliott838s2.newbigblog.com/36223769/new-step-by-step-map-for-daydate