Close-Up: Rolex Yacht-Master in Rolesium

The Rolex Oyster Perpetual Yacht-Master, a sailors’ watch introduced in 1992, underwent a major facelift in both its design and technology in 2012. In this popular article from the WatchTime archives, we take a closer look at it.

Rolesium, a material developed by Rolex and used here in the Yacht-Master’s 40-mm diameter Oyster case, is an alloy of 904L stainless steel and platinum. The bezel, which rotates in both directions and now has a notched ring with 120 gradations, is made entirely of 950 platinum. It has a smooth, sand-blasted finish, except for the raised numerals and indices, which are polished. The hour markers on the nautical-looking blue dial are made of 18k white gold and filled with a luminescent material called Chromalight, which gives off a strong, blue-tinted glow in the dark. Rolex’s traditional Oyster case — with a middle piece crafted from a solid block of the corrosion-resistant alloy and a fluted, hermetically screwed caseback — is water-resistant to 100 meters. The screw-down crown is protected by a crown guard built into the middle case and also features the patented Triplock water-proofing system. Another Rolex trademark — the “Cyclops” magnifying lens over the date, is found at 3 o’clock and made of highly scratch-resistant synthetic sapphire.


Inside the Yacht-Master beats Rolex’s manufacture Caliber 3135, an automatic movement that has been certified by the Swiss testing agency COSC as a chronometer. Like other Rolex movements, it features an oscillating system with a blue hairspring made of Parachrom, an alloy developed and patented by Rolex. According to the company, this hairspring is highly resistant to shocks, magnetic fields and temperature variations, which ensures greater stability in timekeeping precision.

A sold-link Oyster bracelet in 904L stainless steel completes the package, with polished center links and satin-finished outer links. The improved Oysterlock safety clasp, another patented  development, has a security system to prevent accidental opening and also contains the Easylink quick-extension technology, which lets the wearer easily increase the bracelet length by about 5 mm. Technical specs for the Rolex Oyster Perpetual Yacht-Master (retail price: $11,550*) can be found below the photo.

Rolex manufacture Caliber 3135, bidirectional self-winding via perpetual rotor; COSC-certified chronometer; 31 jewels; frequency = 28,800 vph (4 Hz); Paramagnetic blue Parachrom hairspring with Breguet overcoil; large balance wheel with variable inertia; high-precision regulating via four gold Microstella nuts; traversing balance bridge

Central hour, minute and seconds hands; instantaneous date at 3 o’clock with quick setting; stop-seconds function for precise time setting

Oyster (monobloc middle case, screw-down caseback and winding crown) made of Rolesium (combination of 904L stainless steel superalloy and 950 platinum); polished finish; diameter = 40 mm; bidirectional rotating bezel made of 950 platinum, sand-blasted finish, polished raised graduations; screw-down crown with crown guard and Triplock triple water-proofing system; scratch-resistant sapphire crystal with Cyclops lens over date and double nonreflective coating; water-resistant to 100 meters; stainless-steel Oyster bracelet with polished center links and satin-finished outer links with polished edges; folding Oysterlock safety clasp with Easylink 5-mm extension

Blue dial with sunray finish, 18k white-gold hands and appliques with Chromalight for long-lasting luminescence, red seconds hand


Breitling at le Bourget: an indispensable brand in the world of aviation

Official watch and exclusive watch partner of the International exhibition of Aeronautics and of the space, which has just closed its doors, Breitling perpetuates the link authentic and privileged with Aeronautics and the world elite of drivers. The winged “B” brand which shared the heyday of the conquest of the skies thanks to its reliable, robust and efficient instruments and which fly its own patrol, the Breitling Jet Team, has welcomed its guests its marquee of 600 m 2, built on the South terraces of the Museum of the Air.

To celebrate the 50th edition of the Salon du Bourget, Breitling has launched its new model Transocean Unitime Pilot. A true Aviator Chronograph, the new Transocean Unitime Pilot combines size manufacture with universal time system with a technical look Recalling the great tradition Breitling Replica Watches for Airmen. First edge Chronographs Breitling from the 1930s to the legendary Navitimer in 1952, passing by countless models dedicated to the ACEs of the sky, the black dials with white signs have always been the sign of recognition of the best instruments for drivers.

The new Transocean Unitime Pilot pays tribute to this simple, readable and functional design combining a satin steel case and a woven steel bracelet. Thanks to its time display universal fully adjustable by the Crown (a single gesture to correct all indications, including the date, forwards as backwards), this automatic chronograph asserts itself as the ideal of all those accomplice who, in the cockpit or the cabin, juggle time zones and all the world time.

Caliber manufacture B05, with patented mechanism, is certified chronometer by the COSC (Switzerland official chronometer control), the highest reference for precision and reliability. The Transocean Unitime Pilot is also available with a blue dial with a polished red gold case, with a bracelet in leather or crocodile, as well as in a series limited to 1000 copies with case and bracelet in black steel.

Specialist technical watches, Breitling has played a crucial role in the development of the wrist Chronograph and is among the leaders of this complication. Trained at the hard school of aviation, an area where security is of vital importance, Breitling manifests the same obsession of the quality in all its “instruments for professionals”, 100% Swiss made. Whether it’s the robustness and tightness of the boxes, the clarity and readability of the dials or resistance and the comfort of the bracelets, each detail wrapping is designed to respond to intensive use, under the most trying conditions, and subjected to countless in-process controls. All Breitling movements are certified 100% chronometer by the COSC (Controle Officiel Switzerland of chronometers). Breitling, who owns his own calibres manufacture entirely designed and manufactured in its workshops in Switzerland, remains one of the last independent Swiss watch brands

Basing his workshop, in 1884, in the Swiss Jura, Léon Breitling chooses to focus on a domain as exclusive and demanding: that of Chronographs with counters. Precision instruments for sports, science, and industry. With its quality products and its constant quest for innovation, brand Fake Rolex Watches accompanies the first achievements of the pioneers of aviation. In 1915, a precursor of the chronographe‐bracelet, Breitling invented the first independent chronograph push.

In 1923, Breitling perfected this system by separating the functions of ‘ start/stop’ to ‘reset to zero. This patented innovation now lets add several successive time without having to reset the hands – whether it is time a sports competition or a flight time. At the beginning of the 1930s, relying on its reputation of accuracy and robustness, Breitling introduces in its range a “specialty” which goes earned him a world celebrity: edge Chronographs for the cockpits of aircraft.

In 1952, Breitling, decides to create a new ‘wrist instrument’ specifically designed for the needs of Airmen. The Navitimer chronograph was born. With its famous circular slide rule that allows a simple and fast way all operations related to air navigation, it becomes the model cult of pilots and aviation enthusiasts. During the 1950s and 1960s, Breitling shared the growth of commercial aviation by equipping its edge Chronographs aircraft propellers, then the jets from many manufacturers and airlines.

So the brand becomes the “official supplier of world aviation. In 1962, a Navitimer accompanies Scott Carpenter during his orbital flight in the Aurora 7 capsule; This is the first chronographe‐bracelet to travel in space. In 1969, the mark is one of the great watchmakers challenges of the 20th centurycentury by presenting the first chronograph movement with automatic winding. In 1984, Breitling gives the kickoff of the rebirth of the mechanical chronograph by launching the famous Chronomat – become the leader model.

In 2009, engineers Breitling mark, once more, the history of the chronograph creating caliber 01 – automatic chronograph movement, entirely designed and manufactured in the Breitling Chronometrie workshops. In April 2012, Breitling offers 5-year warranty for all models of the manufacture movement. In may 2012, Breitling is designated as official watch of the international Aeronautics Federation under a partnership agreement long term around the world.

In September 2012, on the occasion of the inauguration of its first boutique in Paris, at 10 rue of peace, Breitling launched the Navitimer Blue Sky series limited to 500 pieces. In April 2013, Breitling launches the first montre‐bracelet beacon bi‐frequence: Breitling reaffirms its pioneering role in the field of technical watches and instruments for professionals by creating the first montre‐bracelet in the world with bi‐frequence beacon. The Breitling Emergency II is equipped with a transmitter dual meets the specifications of the international alert system Cospas‐Sarsat satellite, enabling both to launch the alert and guide the location and rescue operations.

In may 2013, to celebrate its 60 years, the patrol of France chose naturally Breitling to design their official watch. Breitling has worked closely with drivers and creates an authentic aviation chronograph: the Chronomat 44-60 years patrol of France. June 17, 2013, official watch and exclusive watch partner of the Aeronautics and space, Breitling fair takes its districts at le Bourget to live a week in the heart of its element of predilection: aviation.