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.
The biggest selling point of the Rolex YachtMaster II below is its thick 18K yellow gold coating, let’s see the details first.JF Rolex YachtMaster Replica Movement: Swiss Valjoux 7750 Chronograph, 28800VPH, Fully Functional ChronographCase: 44mm*14mm, 316L Stainless Steel with 5-mils 18K Yellow Gold Bezel: Blue Ceramic, Rotatable Dial: White Band: 18K Yellow Gold with New Style Rolesor Deployant Clasp Water Resistant: 100m Rolex YachtMaster II 116688 Replica The Rolex YachtMaster II replica watch is made by J12, which is a factory that accumulated its popularity for making high end Audemars Piguet Royal Oak replicas in the beginning. Now J12 factory starts to manufacture Rolex replicas, which include Submariner and YachtMaster. In my opinion, in casing work, no factories can compare with J12 because it makes their greatest effort in polishing outstanding case. This gold YachtMaster replica uses 18K yellow gold on stainless steel case, the yellow gold coating is very thick, almost on the bracelet, a lot of Rolex fans asked me whether the gold coating will fade or not, I must say the yellow gold coating will never be worn, the factory uses more advanced technology on gold plating. Rolex YachtMaster II Gold Watch Look at the white dial, its classic YachtMaster style, there are red, blue, yellow gold and green colors on white background. All square hour markers feature yellow gold frame while its centre is filled with white luminescence. Small second hand is in green color, it works smoothly. Central hour and minute hands are in light blue, the color is a little lighter than the blue ceramic bezel.
However, the dials of the gold Sub were not the standard black dials of their stainless steel counterparts.A few years later, around 1971, Rolex offered another colorway of the yellow gold Submariner featuring a bright blue bezel and dial. The yellow gold Submariners in blue also has the same “nipple dial” design. Particularly intriguing with the blue gold Submariner 1680/8 models is how the dials have transformed into different colors over time including lighter blues, vibrant purples, and rich reddish brown (also known as “tropical dials” in vintage Rolex terminology). Comparing the Rolex Submariner to the GMT-Master II.Two watches, perhaps the two most well-known in Rolex’s sports watch lineup, have amazing similarities, and one can be forgiven for confusing them at a distance. These two watches are, of course, the Submariner dive watch (ref. 116610) and the GMT-Master II (we’ll call it the GMT for short, but we’re talking about the current ref. 116710).The Submariner GMT Master Comparison .The individual histories of the Submariner and the GMT are well documented elsewhere, so let’s compare and contrast the two current models.First, the similarities. The Submariner and the GMT-Master II are luxury watches. Both watches are currently housed in the 40mm diameter so-called “super case” with a ceramic or Cerachrom bezel insert. This case, done in 904L stainless steel, debuted in 2007 with the GMT (the Submariner received the new case a year later). There are minute differences in the two cases, but you need to set them side by side and look very closely to see them.Both watches buckle to your wrist with the current Oyster bracelet.
The Pilot chrono watch has a large case measured to be 43mm in diameter. The case has a round polished bezel contrasting with the brushed case. The case is thick, up to 15mm. The crown and chronograph buttons are set on the right case side, two chronograph buttons are polished and they work the same way as those buttons of genuine watch. Case back is entirely brushed, while sandblasting finish on the center. There are delicate engravings on case back in correct depth. Although this replica has a full chronograph function, please do not operate the chronograph buttons too often. The replica has a thicker case than genuine, we hope ZF could reduce its thickness by modifying its movement inside.
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