Product of nickel-phosphorus, Additionally it is insensitive to magnetic fields. The movement is equipped with the optimized blue Parachrom hairspring, created by Rolex within a paramagnetic alloy. The blue Parachrom hairspring is provided by using a Rolex overcoil, ensuring the calibres regularity in almost any position. The oscillator is equipped https://gunner3k0y5.isblog.net/not-known-factual-statements-about-daydate-47450097