The case of this watch is made of fine 904L steel. A new housing structure was developed to ensure waterproofness. This is the so-called “ringlock system” and is based on three elements.
On the one hand, the housing has a high-performance stainless steel ring that is treated with nitrogen. Its position is between the watch glass and the case back. This high-performance stainless steel ring resists the immense water pressure acting on the watch glass and case back.
Furthermore, the case is made of sapphire crystal. It is slightly curved and a lot thicker than the standard models in the “Oyster collection”.
The third point is the case back, which is made of a titanium alloy that is particularly stable. This was supported by a ring made of 904L stainless steel.
The “HEV” is made of high-performance stainless steel. Its size must be adapted to the housing dimensions to ensure optimal density.
The bracelet, which has been newly developed, is also made from 904L stainless steel. The new double system for extending the bracelet, consisting of the Fliplock extension elements and the “Glidelock clasp”, allows the watch to be worn over a diving suit with a thickness of up to seven mm.
The attractive bezel can only be turned on one side and has a black “Cerachrom” number disc. Their dial has a 60-minute scale. The watch has gold hands under the high-contrast dial as well as indices that are designed with a blue luminous material. The watch also includes the proven Rolex caliber 3135. This now has an in-house “Parachrom” baguet hairspring. This spiral is very shock-resistant and completely insensitive to magnetic fields.
The Rolex Sea-Dweller Deepsea – the icon among diving watches
The Rolex Sea-Dweller Deepsea with the reference 116660 is particularly suitable for professional diving and life under water.
For everyone who loves something special, the Rolex Deepsea in stainless steel is just the thing. This Rolex luxury watch has a diameter of 44 mm and a monoblock stainless steel case with a built-in helium valve. The caseback is also made of stainless steel and coated with a 5-grade titanium alloy. The bezel can be rotated in both directions and has a scratch-resistant high-tech Cerachrom number disc. All indices are lined with luminous material so that the watch can be read even under water. The lume on the Rolex Deepsea reference 116660 glows blue and not green like on older Rolex models.
The watch uses a manufacture caliber, which is considered one of the most precise and robust automatic movements. This luxury watch is an official COSC-certified Swiss chronometer. This technically complex diving watch from Rolex is waterproof up to 3900 meters. This means you can dive deeper with this watch than with any other mass-produced mechanical watch. Despite its size, the watch is very comfortable to wear and is not top-heavy, which is thanks, among other things, to the three-row Oyster bracelet with an adjustable safety folding clasp. The “Ringlock system” patented by Rolex consists of three elements that absorb pressure. Furthermore, the Rolex Deepsea reference 116660 is equipped with a screw-down Triplock winding crown and a triple sealing system.
In the history of Rolex, the Geneva-based company released the world's first patented waterproof watch in 1926. At that time, however, this watch was only water resistant up to 10 meters, which was a record. The water resistance of a watch increases automatically; the deeper you dive with the watch, the water pressure on the case and the seal increases. So the challenge is to build watches that can withstand this pressure. With today's Rolex Deepsea reference 116660, which can accompany a deep-sea diver up to 3,900 meters, the watch is exposed to an overpressure weighing approximately 4.5 tons. In order to withstand this pressure, several materials and systems work together perfectly.
The Rolex Deepsea 44 mm is a technically advanced, high-performance watch built and developed entirely and exclusively by Rolex. Let yourself be inspired by a watch that will delight you with its sportiness and technology.