- #Vintage rolex oyster perpetual datejust 18k tritium professional#
- #Vintage rolex oyster perpetual datejust 18k tritium series#
This unique testing of the chronometric precision pushes back the boundaries of performance and makes Rolex the benchmark for excellence in mechanical watches.
#Vintage rolex oyster perpetual datejust 18k tritium series#
This exclusive designation attests that it has successfully undergone a series of specific final controls by Rolex in its own laboratories according to its own criteria, in addition to the official COSC certification of its movement. The Superlative Chronometer status is symbolized by the green seal that comes with every Rolex watch and is coupled with an international five-year guarantee.
It also began to replace the 12 o’clock hour marker on some dials, such as on the Datejust, in the form of small 18 ct gold appliques. It appeared for the first time on Rolex dials during the 1930s, then on the winding crown in the early 1950s. The Rolex crown, the logo and symbol par excellence of the brand, was registered in 1931. Pioneer in the development of the wristwatch, Rolex is at the origin of numerous major watchmaking innovations, and has registered over 500 patents in the course of its history. The history of Rolex and Swiss watchmaking are inextricably linked.
To guarantee excellent precision, in 2000 Rolex introduced a hairspring in an exclusive alloy of niobium, zirconium and oxygen: the Parachrom hairspring. In a mechanical watch, the oscillator is the guardian of time.Ĭomprising a hairspring and a balance wheel, this regulating organ determines the precision of the watch by the regularity of its oscillations. And to ensure that all Rolex watches can live up to these high expectations, every single one is tested to extremes before it is allowed to leave the Rolex site. Rolex watches have proved themselves from the start in the most extreme conditions imaginable – from the depths of the deepest oceans to the summits of the highest mountains, in the air and on the race track. Oystersteel is extremely resistant, offers an exceptional finish once polished and maintains its beauty even in the harshest environments.įew companies have been so consistently identified with the pursuit of excellence, the quest for the absolute, the discovery of original approaches and innovative solutions. Specially developed by the brand, Oystersteel belongs to the 904L steel family, alloys most commonly used in high-technology and in the aerospace and chemical industries, where maximum resistance to corrosion is essential. Rolex uses Oystersteel for its steel watch cases. It can be equipped with all types of Rolex clasps (Oysterclasp, Oysterlock and Crownclasp) and can include the Easylink comfort extension link system.
#Vintage rolex oyster perpetual datejust 18k tritium professional#
It is fitted on the entire range of Professional watches, but also on some classic models such as the Datejust, Day-Date and Sky-Dweller. Introduced in the late 1930s, the Oyster bracelet is a robust metal bracelet with flat three‑piece links, it remains the mainstay of the Oyster collection. Sometimes colours such as champagne are achieved through electroplating with more than half a dozen different metals. Silver-plating is mostly used as a base layer for the sunray finish, where further colour is added to the prepared dial. The sunray finish on Rolex dials is a predominant method in watchmaking of achieving pure metallic colour dials such as shades of silver grey, rhodium or ruthenium.
This is how Rolex, for the first time in the history of watchmaking, crafted a waterproof winding crown –– a secure interface between the protected, sealed world inside the watch and the harmful elements of the outside world. Oyster Perpetual 31 Oyster, 31 mm, OystersteelĪ little masterpiece of technical prowess, the winding crown of Rolex watches is made up of about 10 parts, and is screwed hermetically onto the watch case.
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