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The Rolex Milgauss is a unique and distinctive model in the Rolex Professional Series, originally designed in the mid-1950s for the scientific community, specifically to address the problem of magnetism interfering with watch accuracy.
Its name is a portmanteau of mille (French for thousand) and gauss, the unit of magnetic flux density, highlighting its key feature: resistance to magnetic fields of up to 1,000 gauss. This capability is achieved by housing the self-winding Manufacture Rolex Calibre 3131 movement inside an internal magnetic shield made of ferromagnetic alloys—a classic Faraday cage design.
The Calibre 3131 is a COSC-certified Superlative Chronometer and also incorporates a Parachrom hairspring for additional anti-magnetic properties and enhanced shock resistance.
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The Rolex Milgauss: Key Models and Details
The Rolex Milgauss is a distinctive Rolex Oyster Perpetual model known for its anti-magnetic properties, originally designed for scientists and engineers. It was officially discontinued by Rolex in 2023, making existing models popular on the secondary market. Key modern Milgauss references, all 40mm Oystersteel watches, include: Ref. 116400: Featured a clear sapphire crystal with a black or white dial. This version is generally available on the used market at a lower price point compared to the "GV" models. Ref. 116400GV (Green Crystal, Glace Verte): This version is unique among Rolex models for its green-tinted sapphire crystal and signature orange "lightning bolt" seconds hand. It came with either a black or the vibrant Rolex Milgauss Blue (known as "Z-Blue") dial.
Used Rolex Milgauss Market Trends
The market value for a Used Rolex Milgauss for Sale has seen an increase following its discontinuation. Collectibility varies significantly based on condition, year, and whether the watch includes its original box and papers. Rolex Milgauss 116400 (Black or White Dial, Clear Crystal): This reference features a clear sapphire crystal. Rolex Milgauss 116400GV (Green Crystal, Black Dial): This model introduced the unique green-tinted sapphire crystal (Glace Verte). Rolex Milgauss Blue (Z-Blue Dial, Green Crystal, Ref. 116400GV): This is often the most desirable modern version, featuring a vibrant electric blue dial paired with the green crystal. As a discontinued model with unique features (lightning bolt hand, green crystal, Z-Blue dial), the Milgauss, especially the Rolex Milgauss Green crystal models, is considered a highly collectible timepiece for many enthusiasts.