The green-tinted sapphire crystal fitted to the reference 116400GV Milgauss has quickly become one of the defining characteristics of Rolex’s anti-magnetic line of watches. The Rolex Milgauss was first introduced in 1956; however, it was not until 2007 that it received its now-signature, green sapphire crystal – an exclusive feature that was originally introduced as a way for Rolex to celebrate the 50th anniversary of their Milgauss line.No other watch in Rolex’s current catalog is fitted with a green-tinted (or any other color) sapphire crystal. However, at the present time, all Milgauss watches that are currently in production leave the factory with green sapphire crystals. Rather than simply being a layer or coating, the light green tint is present throughout the entire material of the crystal, and will not fade or discolor after prolonged wear and use.Rolex claims that it took them many years of research and development to master and perfect the secret procedure of manufacturing their green-tinted sapphire crystals and that the actual process of producing the crystals takes multiple weeks. What is most interesting is that despite a usual eagerness to patent their various in-house technologies, Rolex claims that the green sapphire crystal in the Milgauss is “not patented, as it is so difficult to make that no one else would even venture to try.”Rolex will never reveal their exact formulas and secrets about how they manufacture the green-tinted sapphire crystals fitted to the Milgauss; however, we do know some general information about green-colored synthetic sapphire and the production of sapphire watch crystals as a whole.There are a number of different ways to produce synthetic sapphire, all of which fall into the following general methods of production: melt growth, solution growth, and high-temperature/high-pressure growth. It is hypothesized that Rolex uses a hydrothermal method of production for its synthetic sapphire crystals, which is slow, expensive, and uses heat and pressure to imitate the conditions present deep inside the earth that is responsible for the production of naturally-occurring crystalline gemstones.
Many people love watches made of bronze, because these watches offer them more fun in the wearing process. Bronze case will be oxidized, due to the different environment we are living, so the bronze watch will have different oxidized effect, the bronze case will leave your own special trace.Why should you buy this IWC Pilot Spitfire bronze watch from XF factory?The assembly is completed in formal factory by skilled watch masters, the accuracy and stability of every Spitfire bronze watch are guaranteed.Every piece of IWC bronze Spitfire from XF factory is tested by professional instrument, you do not need to worry about its water resistance.Appearance and dust quality check. Watches with any tiny flaws will not be published to the public.The accuracy of every XF IWC Spitfire Bronze watch is tested with swiss standards, which is controled within 15 seconds.XF adopted Sea-gull 2824, which is considered to be the widely used and most stable movement. Among Sea-Gull 2892, 2836, 2824 and Citizen 9015, after a detailed consideration, XF finally decided to use this Sea-Gull 2824 automatic movement. Genuine watch uses IWC In-House 32110 movement, so whether what movement XF used in this watch, the outlook will not be the same as genuine, so they turn to the most stable one. Because Citizen 9015 has a loudly auto rotor when you wearing the watch, so I think Sea-Gull 2824 is most suitable for this watch.
At the heart of the Deepsea’s case is Rolex’s patented Ringlock system, which uses a super hard, nitrogen-alloyed steel central ring to internally support both the extra-thick sapphire crystal and the Grade 5 titanium caseback. While the Ringlock system is largely responsible for the overall increase in the case size of the Deepsea, it actually enables the watch to be smaller than it otherwise would be, had it were to follow a more traditional case design while still retaining its same colossal depth rating.The primary purpose of the Ringlock system is to reduce the amount of stress placed on the case of the watch. As pressure on the watch increases at greater depths, the majority of it gets exerted on the front and back surfaces of the watch. Since the nitrogen-alloyed stainless steel compression ring internally supports both the crystal and the caseback of the Deepsea, the amount of force exerted on the actual case itself remains relatively minimal. Additionally, as the crystal and caseback get squeezed together, with the majority of the force being supported by the internal compression ring, the front and back gaskets of the watch get pressed together, ensuring an extra tight seal.The caseback on the Rolex Deepsea consists of two components: an inner caseback made from Grade 5 titanium, and an outer, screw-down caseback ring that is constructed from Oystersteel (904L stainless steel). With a traditional, single-piece, caseback design, the entirety of the pressure placed on caseback gets exerted on the case of the watch itself, particularly near the threads. By separating the caseback into two components, Rolex is able to redistribute much of the force being exerted on the rear surface of the watch. The outer, screw-down ring performs the sole duty of keeping the inner, titanium caseback tight on the watch, while the nitrogen-alloyed steel compression ring ultimately supports all the pressure being exerted on the titanium case-back itself.
Its case is made of 316 stainless steel also decorates with anti-reflective coating, it is not only generous in shape but also has a good performance to protect the watch. We can see this big dial is near full of all the places, it with simple style but it is easy in collocation and never out of fashion.The most important points we need to mention is that its capability is never affected even though it is simple in shape. When we see carefully, we find that it has another characteristic. Its second and minute hand separate in two place to display. In left, the place of nine o’clock, it is a small second dial. In right,the place of three o’clock is a dial of power reserve, we can see its energy situation clearly. Decorating with red color in this small dial, can let us feel that it is not so single in color matching. it has a good balance in two side. At the place of six o’clock, it is a display of date. This is really a creative design in color matching.
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