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://zanek9483.blogocial.com/daydate-things-to-know-before-you-buy-66208429