Rolex Terminology

Rolex, with its long history of innovation and precision, has introduced numerous technical terms and patents that have become iconic in the world of watchmaking. This guide explores the most well-known terms and technologies that define Rolex watches, offering a comprehensive overview of the unique features that make these timepieces so sought-after.

OYSTER PERPETUAL

The Oyster Perpetual label identifies Rolex watches with a waterproof Oyster case and self-winding movement. It should not be confused with the entry-level time-only model, also called the Oyster Perpetual.

FLIPLOCK & GLIDELOCK

Fliplock and Glidelock are extension systems for Oyster bracelets, designed to fit over diving suits. The Fliplock offers a 26 mm extension, while the Glidelock allows adjustments up to 20 mm in 2 mm increments.

CERACHROM

Introduced in 2005, Cerachrom is the innovative high-tech ceramic bezel patented by Rolex. The name "Cerachrom" combines the words "ceramic" and "chrom," the Greek word for color. This bezel is highly resistant to scratches and fading, making it an essential component in most modern Rolex sports watches.

COSMOGRAPH

Introduced in 1963, the Cosmograph is Rolex's next-generation chronograph, now known as the Daytona, one of the most celebrated luxury sports watches.

PARACHROM

The blue Parachrom hairspring, patented by Rolex, is resistant to magnetic fields and shocks, significantly improving the precision of the mechanical movement.

CYCLOPS

The Cyclops is the magnifying glass positioned above the date window at 3 o'clock, introduced in 1954 on the Datejust, and has become a distinctive feature of many Rolex watches. (ph: monochrome-watches.com)

JUBILEE & OYSTER

The Jubilee bracelet, introduced in 1945, has a five-link configuration. The sporty Oyster bracelet, on the other hand, has been in use since the 1930s, with a three-link configuration.

Oyster - Jubilee

EASY-LINK

Easylink is the patented Rolex extension system that allows you to lengthen the Oyster bracelet by 5 mm without tools, for optimal comfort.

PEARLMASTER

The Pearlmaster is a luxurious version of the women's Datejust, introduced in 1992, with an exclusive bracelet often adorned with precious gems. (ph. swisswatchexpo.com)

CHRONERGY ESCAPEMENT

The Chronergy escapement, introduced by Rolex in 2015 with the Caliber 3255, is an evolution of the traditional escapement. By improving efficiency, this escapement increases the power reserve, distributing the spring's energy in controlled increments to ensure precision.

TWINLOCK & TRIPLOCK

The Twinlock and Triplock crowns, essential for water resistance, have two and three sealed zones respectively, ensuring the watch is protected from water. Twinlock - Triplock

PERPETUAL

The Perpetual movement, invented in 1931, is the first self-winding rotor system, the basis of all modern automatic watches.

CHROMALIGHT

Chromalight is Rolex's luminescent material, which emits a blue light in the dark and lasts up to eight hours. Debuting in 2008 on the DeepSea Sea-Dweller, it is now featured on various Rolex models.

PRESIDENT

The President bracelet, introduced in 1956 with the Day-Date, is a symbol of luxury, available only in gold or platinum.

RING COMMAND & RINGLOCK

The Ring Command bezel, featured on the Sky-Dweller, controls parts of the mechanical movement. The Ringlock system, exclusive to the Deepsea, allows dives to depths of up to 3,900 meters thanks to a robust and innovative construction.

ROLESOR & ROLESIUM

Rolesor combines steel and gold, while Rolesium combines steel and platinum, both typical of Yacht-Master models. (ph: bobswatches.com)

EVEROSE

Everose is Rolex's 18-karat rose gold alloy, a combination of gold, platinum, and copper, which retains its distinctive color without fading.

S.C.O.C.

“Superlative Chronometer Officially Certified” is the label that indicates that a watch has passed rigorous Rolex testing for accuracy and reliability.