Made of nickel-phosphorus, It is usually insensitive to magnetic fields. The movement is equipped using an optimized blue Parachrom hairspring, manufactured by Rolex in a very paramagnetic alloy. The blue Parachrom hairspring is equipped which has a Rolex overcoil, making certain the calibres regularity in almost any placement. The oscillator https://marcoae84i.blogoscience.com/36341759/how-daydate-can-save-you-time-stress-and-money