https://www.bipfortworth.com/u....sed-rolex-milgauss-t

Rolex is a company that specialises in fusing technical excellence and ageless design, and very few watches offer that union better than the Milgauss. It was introduced in the 1950s and was created for scientists and engineers in environments with intense magnetic fields. Magnetism was a significant threat to mechanical watches back then, which frequently caused them to malfunction.