Product of nickel-phosphorus, Additionally it is insensitive to magnetic fields. The movement is equipped with the optimized blue Parachrom hairspring, created by Rolex in the paramagnetic alloy. The blue Parachrom hairspring is equipped by using a Rolex overcoil, ensuring the calibres regularity in almost any place. The oscillator is equipped https://israel62738.pages10.com/the-best-side-of-daydate-65802804