The blue Parachrom hairspring was developed by fusing niobium and zirconium with a precise amount of oxygen. The chemical composition of the hairspring makes it more resistant to magnetism and shocks, making the timepiece up to ten times more accurate. It gets its blue color from the patented surface treatment used on the hairspring. 

It took several years for the physicists and materials engineers at Rolex to come up with the chemical composition of the alloy and surface treatment that give the hairspring its distinctive blue color. The blue color itself is a technical achievement reserved only for the most prestigious watchmakers. 

Rolex Chronergy Escapement 

The escapement of a mechanical watch movement transfers the energy from the mainspring to the oscillator. It is responsible for the ticking noise that is associated with mechanical watch movements. The escapement is composed of four parts: the escapement wheel, pallet fork, pallet bridge and the roller. The friction caused by these metal components is offset by rubies and patented lubricants, allowing the escapement to tick for many years without requiring replacement. 

The Chronergy component of escapement is a newly developed version of the Swiss lever escapement that uses geometry to improve its efficiency by 15%. The escapement is also cut out to reduce its weight and minimize the effects of inertia. The escapement wheel is made of nickel-phosphorous to protect it form magnetic interference. 

Rolex Paraflex Shock Absorber

The shock absorption system is an important component of the mechanical watch movement. It protects the oscillator and other fragile pieces from shocks that could lower their accuracy. For Rolex, it seems logical for them to have developed this innovation in tandem with their blue Parachrom hairspring, ensuring that their newly developed parts are protected in the long run.

Rolex Perpetual Rotor

Patented by Rolex in 1931, the perpetual rotor is one of the most important tech innovations in the history of the watchmaker. The first perpetual rotor with an oscillating weight, this innovation utilized the movement of the wrist and the laws of physics to provide power to the movement without requiring the wearer to wind the crown. 

The half-moon shaped oscillating weight completes 360º rotations and, in doing so, powers the mainspring. It is equipped with a clutch system that prevents the rotor from overwinding the mainspring, creating a harmonious and efficient power source for the movement. 

The patent for the perpetual rotor expired in 1948, allowing the entire watchmaking industry to adopt this technology. This made automatic or self-winding wristwatch movements the new industry standard. 

Rolex Oyster Case

Introduced in 1926, the Oyster case is perhaps the most recognizable innovation of the watchmaker to date. The original Oyster case used a patented system of screwing the bezel, case back and winding crown to the middle of the case, creating a hermetic seal that protected the Oyster watch up to 100 meters underwater. 

All of today's Oyster Perpetual models feature their recognizable Oyster case. Rolex stamps the entire middle case out of a solid block of metal and adheres it to a screw-down fluted case back. The crystal and bezel are then friction fitted to it and either a Twinlock or Triplock winding crown is added to complete the seal. 

For a more comprehensive list of Rolex tech innovations, check out our Tech page. 

In 2012, filmaker and explorer James Cameron descended into the deepest part of the sea to explore the Challenger Deep, the deepest part of the Mariana Trench. As they did in past explorations of the trench, Rolex created an experimental watch to accompany the explorer into the depths for the DEEPSEA Challenge.

James Cameron on the Deepsea Challenger (photo: Mark Thiessen/National Geographic)

The watchmaker committed to the project only a few weeks before the descent, giving them a small window to design and create an experimental dive watch to send down with the Deepsea Challenger. What resulted was an experimental dive watch called the Rolex Deepsea Challenge. Its case measures 51.4 mm in diameter, 28.5 mm thick with a 14.3 mm crystal. You can see the watch in the photo above attached to one of the arms of the vessel at the top right corner.

Rolex Deepsea Challenge Experimental Watch (photo: Rolex)

The results of this descent proved fruitful for both earth scientists and the engineers that designed the Rolex experimental watch. As expected, the watch survived the crushing pressure of the Challenger Deep, giving Rolex even more bragging rights than before for their dive watches. In terms of earth science, the exploration gave the science community a new understanding of plate tectonics and the actual origin of this trench, which is deeper than the height of Mount Everest. 

>>BACK TO HISTORY

Justin Timberlake released his first new single since 'The 20/20 Experience' last week.  The song, entitled 'Can't Stop the Feeling,' will be featured in the Dreamworks animated film 'Trolls' that is set for release in November. In the video clip for the song, he is shown in a recording studio playing the track for friends and family. He wears a fedora hat, long sleeved print shirt and a gold Rolex Day-Date with a President bracelet. (Click here to learn more about Timberlake's gold Rolex Day-Date.)