Does The Rolex Oyster Perpetual Glow In The Dark?

Finally, Rolex launched Chromalight, their proprietary photoluminescent material, in 2008. This is the first luminescent material that Rolex has created.

According to Rolex, Chromalight glows more fast and has a longer lifespan—up to eight hours—than other luminous materials. In addition, it glows blue in the dark rather than green, which is thought to be easier for human eyes to read in the dark.

The blue Chromalight display is now utilized on the dials of all current Rolex Professional watches, having first been introduced with the Rolex Sea-Dweller Deepsea.

Uncertain of the lume type in your Rolex? Look for the tritium marking at 6 o’clock or the production date on older Rolex timepieces.

Simply turn out the light to see current timepieces glow. A Rolex performs effectively in the dark regardless of color because to its excellent lume.

Chromalight with Super-LumiNova

With the exception of the fact that it required prior light exposure to glow rather than lighting permanently due to its radioactivity, Luminova was significantly more efficient and thought to be better to tritium. By 1998, Rolex had started using it on all of its watches. Rolex switched to Super-LumiNova in 2000, a Swiss-Made variation of Luminova that was marketed by a separate vendor.

Rolex announced a move to Chromalight, a proprietary chemical, from Super-LumiNova in 2008. Chromalight is completely safe and photoluminescent like its predecessor, but it varies in that it lights blue rather than green. According to Rolex, Chromalight begins shining more faster than Super-LumiNova and lasts longer (up to eight hours straight), and the blue tint makes it simpler for human eyes to read in low light. During the day, Chromalight is praised for its bright white color.

Furthermore, Chromalight brings yet another component of their manufacturing process in-house and offers contemporary Rolex watches a distinctive appearance in dim lighting. Consequently, a Rolex’s ability to glow in the dark depends on the exact watch’s production year.

Chromalight Rolex

On the Deepsea Sea-Dweller, Rolex debuted the Chromalight display in 2008. Even though it is also photoluminescent, the Rolex proprietary compound emits a blue glow in the dark this time around as opposed to green. Additionally, Chromalight may last up to eight hours, which is more than twice as long as typical luminous materials, claims Rolex. Rolex started using Chromalight instead of Super-LumiNova in additional sports watches after the Deepsea, including the Submariner, Daytona, and GMT-Master II.

All current Rolex sports watches include Chromalight applied to the hands and hour markers, which is a unique material that is solely available to Rolex. Furthermore, Chromalight has been added to the hands and hour markers of the majority of the brand’s vintage timepieces in the Oyster collection from 2015.

Some very recent (post-2010) Rolex watches glow with green Super-LumiNova, however all current Rolex Oyster Professional watches have a blue Chromalight display. It’s interesting to note that some contemporary Milgauss watches (as well as some of the now-discontinued Datejust II models) briefly included both the blue and green luminosity. In light of this, Chromalight is the only lighting system used solely in the newest Milgauss models.


My wife surprised me with a vintage 1984 Rolex oyster perpetual datejust for our 50th wedding anniversary. I’m happy with my first Rolex encounter, which was this one. The watch dial and hands do not, however, light at night. The luminous substance has a half-life of 12 years, and I think it is tritium. Is there a method to fix or “re-charge” tritium? We would be grateful for any guidance or assistance.

Does a Rolex have night vision?

Why does my Rolex no longer shine, and is there anything I can do to make it sparkle again? is one of the things our customers commonly ask us. Most of the time, constraints of the manufacturing materials Rolex was utilizing at the time of creation cause an older watch to no longer glow.

Modern Rolex watches (like the one seen below) include dials and hands made of photo-luminescent material, which causes them to glow when exposed to light. The intensity and length of the glow are directly related to the amount of light exposure that the watch receives; a watch that is stored inside a safe or tucked away in a jacket sleeve won’t glow at all in the dark, but one that gets plenty of direct sunlight will glow brightly and for a long time into the night.

Rolex made their hands and dials shine in the dark using the radioactive substance Tritium before photo-luminescent materials were widely used. Tritium is radioactive, therefore it will glow whether or not it is exposed to light. However, the radioactive half-life of the substance itself limits how long it can shine. This means that as tritium ages, its capacity to glow will deteriorate until it eventually stops glowing altogether.

Tritium, a substantially less radioactive substance than Radium (another radioactive chemical), was selected by Rolex as a safer substitute for Radium. However, Tritium only has a half-life of roughly 12.5 years. This indicates that just a small portion of the watch’s original brightness would be left after about 20 years from the time it was first produced.

Because the radioactive material that was once utilized on an earlier Rolex watch’s dial and hands has essentially burned out over time, it is only normal for an older Rolex watch (like the one seen below) to no longer glow. Additionally, a non-glowing dial and handset are not frequently viewed as a detriment when considering possible resale value because the loss of luminosity is caused by the intrinsic constraints of the manufacturing materials.

However, doing so necessitates that the dial and hands either be “re-lumed” or replaced – there is no way to simply “recharge” the pre-existing luminescent material. Restoring the luminescence on an older watch that no longer glows is conceivable. Re-luming is a post-production procedure in which a photo-luminescent substance is put to the dial and hands in place of the Tritium’s lack of light. Alternately, a watch’s luminosity can be revived by swapping the hands and dial for more modern versions that get their illumination from photo-luminescent material.

A luminous watch does offer a functional advantage over a non-glowing one, but most vintage Rolex watches have lost their glow, so it is now just seen as a characteristic of older watches.

Which Rolex models shine at night?

Rolex Milgauss Black Dial and the Rolex Oyster Perpetual 39 Simply turn out the light to see current timepieces glow. A Rolex operates effectively in the dark no matter what color it is thanks to its enhanced lume

Does the Rolex Submariner have nighttime illumination?

If you’re unsure of which lume your Rolex has, turning off the lights is the easiest method to determine whether it has Super-LumiNova, Chromalight, or both! Keep in mind that blue is for Chromalight and green is for Super-LumiNova.

Regardless of color, Rolex watches have exceptional nighttime performance and a distinctive appearance. Because the Submariner diving watch has more luminous material than, example, a Daytona, some Rolex watches, such as the Submariner, will light brighter than others. More luminous material produces a brighter and longer-lasting glow, all other variables being equal. For this reason, Rolex’s sports watches often have larger hands and hour markers than their classically designed counterparts.

Which color of light does your Rolex look better when it’s dark, green or blue? Post a comment down below.

How can you determine a fake Rolex Oyster Perpetual?

At the 6 o’clock position, a serial number is embossed between the watch lugs on all Rolex timepieces. To find this, you’ll have to take off your bracelet. The serial number of an authentic watch will be deeply carved.

If you hold it up to the light, you ought to be able to detect a faint glow around the borders. Because the method used by counterfeiters is not precise enough to recreate the pristine Rolex serial number, a fake will have worn down or shoddy etching.

How long is the Rolex glow good for?

SuperLuminova and Rolex Chromalight can be distinguished from one another because Chromalight shines blue in the dark, whereas SuperLuminova does not.

Rolex debuted the Deepsea Sea-Dweller in 2008, a watch that calls for a robust and dependable lume, and this is when the Chromalight material was first introduced.

Chromalight is a photoluminescent substance that may last up to eight hours, which is more than twice as long as conventional luminescent substances, claims Rolex. Rolex also touts the material’s superior legibility and ease of vision.

Rolex began to include the Chromalight in additional models, such as the Submariner, the Daytona, and the GMT-Master, following the advent of the Deepsea Sea-Dweller. By doing this, the bright material will no longer be SuperLuminova.

However, Rolex also continues to make several contemporary watches using SuperLuminova rather than Chromalight, such as the Milgauss. Of course, this is going to change soon.

Nearly every watch in Rolex’s collection now features Chromalight, but an intriguing fact is that there is no set schedule for the switch, so various iterations of the same model may have different colored lume.

If Chromalight is, in fact, a rebranded Super-LumiNova type C9 with a different lume hue, as some have theorized, Rolex has done a wonderful job of marketing it and boasting that it offers amazing attributes and is something wholly new and even revolutionary.

Chromalight does not appear to glow any brighter than the green lume, other than, at least theoretically, lasting longer. It does, however, appear to glow for a longer period of time. However, since the lume’s hue has changed, which could deceive the eye into thinking that is the case, this may not necessarily be accurate as well.

If the aforementioned is accurate, there’s a high likelihood that Rolex Chromalight and Superluminova are interchangeable, but that is a different matter that we won’t discuss today.

Although Rolex USA registered a trademark on the term “Chromalight” in 2009, the company does not appear to be the owner of the Chromalight compound’s intellectual property. This was included under the heading “watches and parts thereof.”

It’s common secret that Rolex names a lot of its components, including Cerachrom and Oystersteel, but one would think that if Rolex invented Chromalight, they would have enthusiastically promoted the new creation and included it into their marketing. But Rolex hasn’t done this before now.

What causes my watch to shine at night?

Phosphorescence, a type of photoluminescence, is what you see when your watch hands light in the dark. The latter refers to a material’s capacity to emit light as a result of absorbing photons from an external source of light after being subjected to it. An electromagnetic field, such as the electromagnetic radiation from light and radio waves, has a quantum called a photon. In the end, it all comes down to the glowing substance’s atoms, whose excited electrons absorb photons and reach a higher energy level before emitting photons that we can perceive as light when the material “relaxes.” As a result, phosphorescent materials take in photons from outside light and re-emit them as visible light. In the case of phosphorescent paints used for watch dials, this re-emission and illumination occur over an extended length of time, over a period of many hours. A phosphor and a “activator” to boost photon absorption and release are needed for phosphorescence to occur. Zinc sulphide, a phosphor once frequently employed in glow-in-the-dark materials, is quite safe by itself but poses serious risks when combined with radium or other radioactive materials as an activator or “excitant.”

The Girard-Perregaux Bridges Cosmos has a globe and a constellations chart that illuminates in the dark or when held under a UV light.

The sky chart, which gives the Cosmos its sidereal dimension, is laser-engraved at nine o’clock on a blue-tinted titanium globe.

On a 24-hour scale, the globe at three o’clock displays day, night, and the time in a second time zone.

The zodiac signs travel through this tiny expression, revealing the undiscovered world as the earth rotates each day.

Even in normal light, the lume in the hands is pretty noticeable. A welcome surprise is the brilliance of the other components.