Rolex Milgauss

About this reference

The Rolex Milgauss reference 6541 was produced between approximately 1956 and 1960 as a specialized tool for scientists and engineers. It features a 38mm stainless steel Oyster case equipped with a soft iron Faraday cage to protect the caliber 1030 movement from magnetic fields up to 1,000 gauss. Collectors prioritize this reference for its honeycomb-textured dial, rotating black graduated bezel, and distinctive lightning bolt seconds hand. Due to low commercial demand during its original production run, surviving examples are rare. On the secondary market, prices typically occupy the mid-to-high six-figure range depending on condition and original components. A notable variant includes the version produced without the rotating bezel, featuring a smooth polished bezel instead, primarily for the US market. In 2023, a tropical dial reference 6541 set a record for the model at auction, selling for approximately 2.2 million CHF.