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Rolex · Family: Milgauss
The Rolex Milgauss 116400GV is the 40mm Oystersteel reference that, since 2014, has carried a green-tinted sapphire crystal on top of the line Rolex reintroduced in 2007. It runs Calibre 3131, shielded by a soft-iron Faraday cage rated to 1,000 gauss of magnetic resistance. Rolex discontinued the entire Milgauss line in 2023. Cazador has no verified price observations. Its differential: the only recent-catalog Rolex with a tinted sapphire crystal.
Estimated range: €6,182 – €11,339
Based on 6 real observations (2017-12-13 – 2023-11-22), converted to EUR using the ECB historical rate for each date. Small sample — the range will narrow as more data arrives.
The original Milgauss debuted in 1956 as reference 6541, a watch built for scientists and engineers working near equipment that generated intense magnetic fields, such as CERN in Geneva. Its name combines the French "mille" (thousand) with the unit "gauss," referencing its ability to withstand up to 1,000 gauss of magnetic exposure without losing accuracy. Demand for this type of tool watch faded over time, and Rolex pulled the line from its catalog in 1988.
Rolex reintroduced the Milgauss in 2007 as reference 116400, fitting it with an in-house Calibre 3131 and an internal soft-iron Faraday cage that shields the movement from external magnetic fields. The design revived, as a historical nod, the lightning-bolt seconds hand already present on the original 1950s generations.
In 2014, Rolex unveiled the 116400GV variant, adding a sapphire crystal with a translucent green tint — a treatment that, to date, has not been repeated on any other model in Rolex's catalog. This execution was offered with either a black dial or the blue dial collectors know as "Z-Blue," which produces a rippling gradient effect under certain lighting conditions.
Calibre 3131 features a blue Parachrom hairspring, resistant to temperature swings and shocks, paired with the Paraflex shock-absorption system, and delivers roughly 48 hours of power reserve. The combination of Faraday cage and non-ferromagnetic hairspring is what lets the watch reach its stated 1,000-gauss resistance, well beyond that of a conventional mechanical watch.
At Watches & Wonders 2023, Rolex withdrew the entire Milgauss line from its catalog with no direct successor announced, a move widely covered by industry press. Since then, the 116400GV has existed solely through the secondary market and whatever remaining stock sits within the authorized dealer network.
It's a translucent tint Rolex introduced in 2014 with reference 116400GV. It is the only time the brand has colored the sapphire crystal on a catalog model — a purely aesthetic feature with no added technical function over clear sapphire.
No. Rolex discontinued the entire Milgauss line at Watches & Wonders 2023 with no successor announced. We do not precisely confirm whether new stock remains within the official network as of today.
Cazador has no verified price observations for this reference. We do not estimate or invent a figure without our own PricePoints; this section activates once sufficient data exists.
It shields the movement from intense magnetic fields via a soft-iron Faraday cage — a genuine need for professionals working near heavy machinery, MRI equipment, or laboratory instruments.
Both share the case, movement, and Faraday cage. The documented difference is the crystal: the 116400 has clear sapphire, while the 116400GV, launched in 2014, carries the signature translucent green tint.
It's the collector nickname for the 116400GV's blue dial, which produces a rippling gradient effect under certain lighting conditions, distinct from the black-dial execution of the same reference.
Roughly 48 hours, per Rolex's specifications for this in-house caliber with a Parachrom hairspring and Paraflex shock absorption.
It combines the French "mille" (thousand) with the magnetic unit "gauss," referencing the 1,000-gauss resistance Rolex originally engineered in 1956 for scientists exposed to intense electromagnetic fields.