2009 Basel Watch Fair, replica watch launched a new submariner 116613.116613 replaced the ancient 16613 submersible - one of the most popular Rolex watches before. This new 116613 submarine type of upgrade and we see the platinum section 116619 submarine is the same. Those who are familiar with the changes introduced by the Rolex GMT Anniversary (2005 Rolex GMT MasterII 116718 LN) will also be able to easily see the apparent appearance and functional changes of the 116613 submariner. First, the bezel with the 50th anniversary of GMT watches, is the ceramic "CERACHROM" material bezel. This new bezel is hard to scratch. CERACHROM in terms of color or there are some limitations. The beginning of only monochrome bezel, until 2013 before the introduction of black and blue bezel GMT Master II BLNR, 2014 only launched red and blue GMT bezel Greenwich II (model 116710BLNO), the red is probably too difficult to make, So the Pepsi circle GMT MasterII Rolex has not been willing to get out of the money. Compared to the traditional aluminum bezel, CERACHROM bezel in the light under different conditions will be more shades of change. So with the photo to show the exact color of the watch is a considerable challenge. But the 116613LB dial is very uniform, color consistent, the purpose is to closely match the blue bezel. 50 anniversary of the GMT watches on the watch ear and crown bridge are expanded, 116613 also have the same changes - these large ears and bridge to the new submarine a larger visual appearance, although the dial size is still old water Ghost's 40mm diameter. Submarine 116613 case waterproof capacity with the old balance - 300 meters. 116613 Submarine's bracelet and clasp have a considerable significant upgrade, which is the Rolex Shui Gui fans, is undoubtedly a good news. In the past few years in the submarine watch in the Rolex Oyster strap, especially the clasp has some short shortcomings - hollow center links in the use of years later, easy to elongate "extension", although the oyster The stamping metal buckle works well, but never looks and feels like the same quality standard as the rest of the watch. Stainless steel and 18K gold oyster strap 116613 submarine has a solid center link, its exquisite polished to this version of the submersist to bring the attire of the watch. Even better is the new Glidelock clasp. The Glidelock clasp compared to the previous design is very solid. Glidelock clasp is not just beautiful - it's also improved. Do not need any tools can be fine-tuned to adapt to the wrist size. You only need to slide the adjustment feet forward or backward in the buckle until you get the best feeling of wearing. The design also replaces the dive extension section --- we can see in the previous water ghost watch. If you want to wear a diving suit, just adjust the Glidelock clasp on the line. Clasp was once a significant weakness for Rolex's sneakers, but now it's the best clasp design I've ever seen! Rolex (and some other manufacturers) have also been trying to change the color of the SuperLuminova luminous material on the timepiece. Over the years, their watches in the darkness will be glowing green. But the 116613LB submarine's luminous blue light, like the 116619 submarine, the new deep sea-Dweller the same. It looks great, especially this watch has a blue dial and bezel. In this new submariner 116613LB installed in the proven 31 drill Rolex Cal.3135 movement (entirely by Rolex design "internal" manufacturing). 3135 Since its inception in 1989, 3135 has also been upgraded in 116613, and Rolex has upgraded to a new blue "Parachrom Bleu" gossamer. I do not quite understand why 3135 movement for the hair but did not be given a new model, and Rolex 3185 movement, for a new gossamer, it became the Rolex 3186 movement. In any case, the new gossamer is almost completely resistant to magnetic, as well as a high degree of impact and resistance to temperature changes - three mechanical watch the main enemies of precision. Cal.3135 is known as one of the most reliable and powerful moves ever created. At the same time, some people criticize the lack of refinement and technical complexity of the movement. Admittedly, the 3135 will not win any beauty contest (Rolex decorations are much less, compared to other manufacturers), but it is deliberately so. It was designed from the beginning to be wrapped in a stainless steel Oyster case movement, and endured strict conditions and environment, treacherously - it was an obvious example of the function over form. I also think that 3135 is not lack of technical complexity of the watch industry, Rolex research and development is considered to be second to none. Over the years Rolex has implemented a number of truly significant technical features in 3135, such as the Microstella adjustment screw, the KIF shock, and of course the new blue Parachrom. The vibration frequency is 28,800 times per hour (BPH). 3135 movement through the COSC test and the accuracy of the highest standards of certification. From its own merits to judge the new Rolex Submariner 116613LB, no doubt it is a very nice watch upgrade, quite comparable to any other watch maker on the market. Personal preferences aside, the technical specifications of the submarine has been greatly improved, the submarine can well continue to defend the king of its luxury diving watch.