The Rolex Glidelock on the Oysterflex bracelet has six notches of approximately 2.5 mm, allowing the length of the bracelet to be adjusted easily, and without tools, up to some 15 mm. This particularly inventive mechanism comprises a rack located under the clasp cover and a toothed sliding link that locks into the chosen notch. It also features the Rolex Glidelock extension system, which was designed by the brand and patented. The Oysterflex bracelet on this new version of the Yacht-Master 40 is equipped with the Rolex-designed, patented Oysterlock folding safety clasp in 18 ct white gold, which prevents accidental opening. For enhanced comfort, the inside of the Oysterflex bracelet is equipped with longitudinal cushions. Developed by Rolex and patented, this innovative bracelet is made up of flexible, curved metal blades overmoulded with high-performance black elastomer, a material that is particularly resistant to environmental effects and very durable. The new 18 ct white gold Yacht-Master 40 is fitted with an Oysterflex bracelet, which singularly combines the robustness and reliability of a metal bracelet with the flexibility, comfort and aesthetics of an elastomer strap. OYSTERFLEX BRACELET AND OYSTERLOCK SAFETY CLASP Thanks to its barrel architecture and the escapement’s superior efficiency, the power reserve of calibre 3235 extends to approximately 70 hours. The oscillator is fitted on the Rolex-designed, patented high-performance Paraflex shock absorbers, increasing the movement’s shock resistance.Ĭalibre 3235 is equipped with a self-winding module via a Perpetual rotor. The blue Parachrom hairspring is equipped with a Rolex overcoil, ensuring the calibre’s regularity in any position. The movement is fitted with an optimized blue Parachrom hairspring, manufactured by Rolex in a paramagnetic alloy. Made of nickel-phosphorus, it is also insensitive to magnetic fields. At the forefront of watchmaking technology, this self-winding mechanical movement led to the filing of several patents, and offers outstanding performance in terms of precision, power reserve, resistance to shocks and magnetic fields, convenience and reliability.Ĭalibre 3235 incorporates the patented Chronergy escapement, which combines high energy efficiency with great dependability. The new version of the Yacht-Master 40 is equipped with calibre 3235, a movement entirely developed and manufactured by Rolex that was released in 2015 and has been fitted on this model since 2019.

Yacht master 40