Product of nickel-phosphorus, Additionally it is insensitive to magnetic fields. The movement is equipped with an 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://milo5l9r1.theobloggers.com/36360848/not-known-factual-statements-about-daydate