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The Rolex Milgauss is the antimagnetic steel sports watch Rolex built for scientists, killed in 1988, brought back in 2007 and then killed again in 2023. A green crystal 116400GV runs about $9,000 to $15,000 today depending on the dial. That is more than it cost new, which makes the Milgauss the opposite of almost every other discontinued Rolex.
Rolex retired two watches in 2023. One of them lost money afterwards. This is the one that gained.
Rolex Milgauss Prices at a Glance
| Reference | Years | Description | Price today |
|---|---|---|---|
| 116400 | 2007 to 2016 | Clear crystal, white or black dial | $7,500 to $11,000 |
| 116400GV | 2007 to 2023 | Green crystal, black dial | $9,000 to $14,000 |
| 116400GV Z-Blue | 2014 to 2023 | Green crystal, electric blue dial | $11,000 to $15,000 |
| 1019 | 1960 to 1988 | Vintage, smooth bezel | $25,000 to $60,000 |
| 6541 and 6543 | 1954 to 1960 | Vintage, fewer than 200 made | Six figures |
What the Milgauss Is and Why It Exists
The name is arithmetic. Mille is French for thousand, gauss is the unit of magnetic flux density named after Carl Friedrich Gauss, and the watch is rated to survive 1,000 gauss. Ordinary mechanical watches start losing accuracy at a fraction of that.
The standard origin story is that scientists at CERN approached Rolex in the early 1950s wanting a watch that would keep time near particle accelerators, and Phillips, the auction house, states this directly. It is worth knowing that CERN’s press office has reportedly denied any formal relationship with Rolex, so treat the partnership language in most articles as marketing rather than documented history. What is not in dispute is the engineering: Rolex built the thing to survive magnetism, and it does.
Production ran from 1956 to 1988, stopped for 19 years, restarted in 2007 for the model’s 50th anniversary, and ended for the second time in spring 2023 when Rolex removed it from the catalogue and the website without comment.
The Milgauss Went Up After Rolex Killed It
The last published retail price for the 116400GV was $9,300. By the summer after the discontinuation, pre-owned examples were starting around $12,000. Today the black dial trades between $9,000 and $14,000 and the Z-Blue between $11,000 and $15,000.
Set that against the Rolex Cellini, which Rolex retired the same year. Cellini references still sell below their original retail and have done for a decade. Two watches, same brand, same year of death, opposite outcomes.
The difference is steel and supply. The Milgauss is a 40mm steel sports watch on an Oyster bracelet, which is the exact configuration the market fights over, and Rolex never made many of them because it never sold particularly well. Slow sales in production become scarcity after production stops. The Cellini is solid gold, which is expensive to make and therefore always available at a price, and dress watches have a smaller audience to begin with.
There is a mild irony here. Rolex discontinued the Milgauss partly because it was the weakest performer among its modern 40mm steel watches on the secondary market. Discontinuing it fixed that.
Rolex Milgauss Prices by Reference
| Version | Crystal | Dial | Typical price | Notes |
|---|---|---|---|---|
| 116400 white | Clear sapphire | White | $7,500 to $10,000 | Cheapest way in |
| 116400 black | Clear sapphire | Black | $8,500 to $11,000 | Discontinued 2016 |
| 116400GV black | Green sapphire | Black | $9,000 to $14,000 | The signature version |
| 116400GV Z-Blue | Green sapphire | Electric blue | $11,000 to $15,000 | Strongest demand |
| 1019 | Acrylic | Silver or matte black | $25,000 to $60,000 | Clean examples cluster near $30,000 |
| 6541 | Acrylic | Honeycomb, lightning bolt hand | Six figures | Auction territory only |
The Green Crystal Is the Whole Watch
The GV in 116400GV stands for glace verte, green glass. Rolex introduced it in 2007 for the Milgauss anniversary and has never used it on another model since, which is the single most important fact about buying one.
Tinting sapphire green is reportedly one of the hardest finishing processes Rolex has attempted, and the company has never explained how it does it. The effect is subtle in photographs and obvious in person: the crystal throws a faint green cast around the edge of the dial that shifts with the light. Nothing else in the catalogue does it, and now nothing else ever will.
The clear-crystal 116400 is the same watch without that. It is $1,500 to $3,000 cheaper and it is the reference to buy if you want the Milgauss for the movement and the history rather than the party trick. Most buyers want the party trick.
Black Dial or Z-Blue?
Rolex added the Z-Blue in 2014, an electric blue dial under the green crystal, and it changed the character of the watch completely. The black dial reads as a slightly odd steel sports Rolex with an orange lightning bolt on it. The Z-Blue reads as a watch with a genuine point of view.
The market agrees, which is why the Z-Blue carries roughly a $2,000 premium and sells faster. Buy the black dial if you want the Milgauss to work as an everyday watch and the Z-Blue if you want it to be the watch people ask about. We currently hold both in the Milgauss collection, the black dial 116400GV at $11,350 and the Z-Blue at $15,475.
How the Antimagnetic Protection Actually Works
Two systems, working together.
The first is a soft iron Faraday cage inside the case, a two-part ferromagnetic shield that surrounds the movement and redirects magnetic fields around it rather than through it. On the earliest references this was closer to an iron band than a full enclosure. The modern version encloses the calibre completely, which is also why the Milgauss has a solid caseback and always will.
The second is inside the movement. The calibre 3131 uses Rolex’s blue Parachrom hairspring, an alloy of niobium and zirconium that is paramagnetic, plus an amorphous nickel-phosphorus escapement that is also non-magnetic. So even if a field reaches the movement, the two components most vulnerable to magnetism are made of materials that do not care.
Early references had a third layer. The 6541 used a honeycomb dial woven with metal for additional shielding, which is one reason those dials are so prized now. Rolex dropped it on the 1019.
The Calibre 3131 and Why the Milgauss Aged Out
The 3131 is a 31-jewel automatic beating at 28,800vph with a 48 hour power reserve and 100 metres of water resistance in a 40mm case. It is COSC certified. It is also the reason the model was retired.
By 2023 the rest of the Rolex catalogue had moved to the 32xx series with the Chronergy escapement and 70 hour power reserves. The Milgauss never got that upgrade. Next to a current Submariner running 70 hours, a 48 hour Milgauss looked like what it was: a 2007 watch still on sale in 2023.
This matters when you buy one. You are buying a movement generation behind current production. It is reliable, well understood and cheap to service by Rolex standards, but if you take it off on Friday night it will be stopped by Sunday afternoon.
Vintage Milgauss: 6543, 6541 and 1019
Reference 6543 and 6541
Fewer than 200 examples of both references combined were made across four years ending in 1960, which makes them among the rarest series-produced watches Rolex has ever released. The 6541 introduced the honeycomb dial and the lightning bolt seconds hand, and carried a rotating bezel borrowed from the Submariner.
A non-luminous version exists and is known as the CERN dial, on the understanding that scientists ordered dials without radium so they were not carrying a radioactive source into a laboratory full of sensitive instruments.
On value, be careful with the headline numbers. A 6541 sold at Phillips in Geneva in May 2023 for CHF 2,238,000, and that result gets quoted constantly. It was an exceptional example. A more representative 1958 6541 carried an auction estimate of CHF 100,000 to CHF 200,000. Both figures are real and they describe very different watches.
Reference 1019
The long one, in production for 28 years from 1960 to 1988. Smooth steel bezel, no honeycomb, dials in vertically brushed silver or matte black, and the calibre 1580 running at 19,800vph with a 48 hour reserve. No lightning bolt hand on most examples.
The 1019 is the sensible entry into collectible vintage Milgauss territory at $25,000 to $60,000, with clean examples clustering nearer the bottom of that band than the top. It is a considerably more wearable watch than its price suggests and a considerably rarer one than its price suggests too.
What Actually Changes a Milgauss Price
- Dial and crystal combination. The largest single factor on modern references. Z-Blue over black over clear-crystal, in that order, with roughly $2,000 between each step.
- Box and papers. A full set on a discontinued steel Rolex is worth more every year that passes. On the Milgauss specifically it is the difference between the top and the middle of the range.
- Production year. Later examples from 2019 onward carry the newer bracelet and clasp finishing and command a premium over 2007 to 2010 pieces.
- Bracelet stretch. Oyster bracelets on 15-year-old watches develop play between the links. It is visible, it is not repairable without replacing links, and it is a legitimate discount.
- Orange accents. The lightning bolt hand and the orange minute markers are the model’s signature. Faded or mismatched orange on an older example is a real value hit.
- Service history. The 3131 is a straightforward movement, but a Milgauss that has never been opened in 15 years is a service bill you are inheriting.
Is the Rolex Milgauss a Good Investment?
Better than most, with a caveat worth taking seriously.
The case for it: production has ended permanently, volumes were always low, it is steel and 40mm which is the most liquid configuration in the market, and the green crystal is a feature that cannot be replicated because Rolex has never put it on anything else. Those are durable reasons for a floor under the price.
The caveat: a good part of the current price is discontinuation news rather than demand. Prices jumped in 2023 on the announcement, which is how these things always go, and announcement premiums soften. Rolex has also revived this model once already, and a Milgauss returning with a modern calibre would put real pressure on 116400GV values overnight.
Buy it because you want the only green crystal Rolex ever made. If it holds its money, and it probably will, treat that as the bonus. Our guide to what determines the value of a Rolex covers the factors that hold across the catalogue.
What to Check Before You Buy a Pre-Owned Milgauss
- Look through the crystal at an angle in daylight. Genuine glace verte shows an even green cast at the edge. Replacement crystals from non-Rolex sources are the most common problem on this reference and they are obvious once you know to look.
- Check that the orange on the lightning bolt hand matches the orange on the dial markers. A replacement hand from a different production year will not match.
- Press the bracelet flat and look for gaps between links. Stretch is normal at this age and it is a negotiating position, not a dealbreaker.
- Confirm the reference and serial between the papers, the rehaut engraving and the card. The 116400 and 116400GV are visually similar in a photograph.
- Ask about magnetism directly. A Milgauss that has been magnetised is unusual by design, but a serviced-by-anyone watch can come back with a demagnetised hairspring replaced by a non-Parachrom part.
- Verify the watch itself before money moves. Our guide on how to authenticate a Rolex covers the checks that matter.
Buying or Selling a Rolex Milgauss in West Palm Beach
We stock, buy and trade Milgauss references at 1601 Forum Pl #1010, West Palm Beach, FL 33401, alongside several hundred references across the full Rolex collection. Discontinued steel models move quickly, so anything listed should be treated as available today rather than next month.
If you are selling, the Milgauss is one of the few Rolex models where the specific dial changes the offer substantially, so bring the watch rather than describing it over the phone. Box, papers and the original bracelet all count. Start with our guide to selling your Rolex and our watch appraisal guide, then call 561-220-9107.
If you already own one, check that your policy reflects what it is worth now rather than what you paid in 2019. Values moved. Our luxury watch insurance guide explains where standard homeowner’s coverage stops.
Rolex Milgauss FAQ
Why was the Rolex Milgauss discontinued?
Rolex removed the Milgauss from its catalogue and website in spring 2023 without giving a reason. The likeliest explanation is commercial: the model sold slowly and had the weakest secondary market performance of Rolex’s modern 40mm steel watches, and the calibre 3131 was a generation behind the movements in the rest of the range.
How much is a Rolex Milgauss worth?
A green crystal 116400GV with a black dial trades between $9,000 and $14,000, and the Z-Blue between $11,000 and $15,000. The earlier clear-crystal 116400 runs $7,500 to $11,000. Vintage reference 1019 sits between $25,000 and $60,000, and the 1950s 6541 reaches six figures at auction.
Did the Milgauss go up in value after it was discontinued?
Yes. Retail was $9,300 at discontinuation and pre-owned examples were starting around $12,000 within months. That makes it unusual among discontinued Rolex models of the same period, including the Cellini, which continues to sell below its original retail.
What does Milgauss mean?
It combines mille, French for thousand, with gauss, the unit of magnetic flux density named after the physicist Carl Friedrich Gauss. The watch is rated to withstand 1,000 gauss of magnetic exposure, which is far beyond what an ordinary mechanical movement tolerates.
What is the green crystal on a Rolex Milgauss?
It is a green-tinted sapphire crystal Rolex calls glace verte, introduced in 2007 on the reference 116400GV. Rolex has never used it on any other model and has never explained the process. It is the reason the GV references cost more than the clear-crystal 116400.
Is the Rolex Milgauss waterproof?
The modern 116400 and 116400GV are Oyster cases rated to 100 metres, so swimming is fine and diving is not the intended use. Vintage references carry lower ratings and decades-old gaskets, so treat any 1019 or 6541 as not water resistant until it has been pressure tested after a service.
Will Rolex bring the Milgauss back?
Nobody outside Rolex knows, but there is precedent. The model was discontinued in 1988 and returned in 2007 after a 19 year gap. A revival with a current-generation movement is plausible and would put downward pressure on 116400GV prices, which is the main risk in treating one as an investment.
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