Made of nickel-phosphorus, It is additionally insensitive to magnetic fields. The movement is fitted having an optimized blue Parachrom hairspring, made by Rolex in the paramagnetic alloy. The blue Parachrom hairspring is equipped by using a Rolex overcoil, making certain the calibres regularity in almost any posture. The oscillator is https://felix5l9s2.mybjjblog.com/daydate-things-to-know-before-you-buy-43514220