At this year’s Basel International Watch & Clock Fair, Rolex launched a new generation of Oyster Perpetual Sea-Dweller watches. Since Rolex launched the first Oyster Perpetual Sea-Dweller in 1967, this watch has been regarded as a legend for professional diving watches for 50 years.
The new Oyster Perpetual Sea-Dweller is equipped with a 43 mm case and is equipped with the leading Rolex 3235 calibre, the first time it has been used in a Rolex professional watch. For the convenience of reading the calendar, for the first time, a small window convex lens has been added to the blue crystal mirror at 3 o’clock. The classic red lettering ‘Sea-Dweller’ on the dial is borrowed from the first sea-dweller watch.
The winding crown is equipped with a triple-lock triple waterproof system, which is firmly screwed to the case, and has a waterproof performance comparable to that of a submarine door. The crown is protected by a crown guard, which is integrated into the middle case.
The watch is water-resistant to 1,220 meters (4,000 feet), and the Oyster Perpetual Sea-Dweller was originally designed as a pioneer in deep-sea diving. In keeping with the name of its deep-sea diving watch, this watch is equipped with the following Rolex innovation: Helium exhaust valve. Rolex also patented the helium exhaust valve in 1967. During the deep dive decompression, the air pressure will rise accordingly. At this time, the cleverly designed safety valve will adjust the pressure inside the case and ensure that the watch is effectively waterproof.
The unidirectional rotating 60-minute graduated bezel of the Oyster Perpetual Sea-Dweller allows divers to grasp their diving and decompression time, which is accurate and safe. This model is equipped with a patented black Cerachrom ring developed by Rolex, and is made of ceramic that is not easily scratched. It will not fade even when exposed to ultraviolet rays. Rolex uses a PVD (Physical Vapour Deposition) coating technology to deposit a platinum film on the scale. The luminous black dial is equipped with oversized Chromalight hands and hour markers, all coated with luminous materials, which emit a persistent blue light in the dark, which is clear and easy to read.
The Oyster Perpetual Sea-Dweller is equipped with a caliber 3235, a new generation of movement developed and manufactured by Rolex. This self-winding mechanical movement is the pinnacle of watchmaking. With 14 patents, this movement is outstanding in terms of precision, power reserve, shock and magnetic resistance, convenience and reliability, and perfectly showcases Rolex’s superb technology. This movement is equipped with Rolex’s new patented Chronergy escapement. The new escapement is made of nickel-phosphorus, which is not only efficient and reliable, but also immune to magnetic interference.
The balance with hairspring is the heart of the watch. It is equipped with Rolex’s patented blue Parachrom hairspring. This hairspring is made of a unique alloy cast by Rolex. It is not affected by magnetic fields and its shock resistance is ten times higher than traditional hairsprings. The last Rolex ring ensures that the hairspring can still maintain regularity at any position. The 3235 movement is equipped with a self-winding component. The movement is wound by a perpetual oscillating weight. The new structure of the barrel and the excellent efficiency of the escapement increase the power reserve of the 3235 movement to about 70 hours.