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://connerc0h0c.blog-kids.com/30415415/the-best-side-of-daydate