SIHH 2014 Preview: Audemars Piguet Royal Oak Concept GMT TourbillonsharetweetshareAudemars Piguet released its first Royal Oak Concept watch in 2002 that has a case manufactured from Alacrite 602. Another Concept model , in 2008, featured a forged carbon case, along with the 2011 model combined a titanium case which has a black ceramic bezel. Before 2014 SIHH watch fair in January, AP has unveiled the newest within the series, the Royal Oak Concept GMT Tourbillon, which adds a white ceramic bezel on the titanium case.The Audemars Piguet Royal Oak Concept GMT Tourbillon comes with a bezel, crown and push-pieces in white ceramic (replacing this year's model's black ceramic), contrasting together with the sculpted titanium case middle. Audemars Piguet has additionally incorporated ceramic to the movement itself, while using the material with the hourglass-shaped upper bridge, which serves to highlight the symmetry of the watch's main attractions, its tourbillon and GMT display. Both of them are visible with the open dial, another hallmark in the Audemars Piguet Royal Oak Concept series, which was initially launched like a tribute towards the Royal Oak's 30th anniversary replica rolex submariner perpetual date watches .Creating the watch's white ceramic parts would have been a complex and time-consuming process, AP says, because ceramic is practically nine times harder than steel and virtually scratch-proof. Special milling-cutter machines pre-loaded with diamond-tipped tools were required (ceramic is only able to be scratched by diamonds) for the process; each bezel takes about eight hours to create, compared to 45 minutes roughly to get a comparable bezel manufactured from steel.The watch's 44-mm-diameter case is made from titanium, steel prized due to its toughness and lightness (even more light as steel) which is more rounded than a typical Royal Oak case, the higher to focus on the model's famous octagonal bezel with eight hexagonal screws. The interior flange encircling the dial is constructed of lightweight anodized aluminum. (Press the photo for a bigger image.)The characteristic containing defined Audemars Piguet's Concept replica watches, the mixing of case and movement, can be on show in this particular new model. The movement, hand-wound Calibre 2930, includes a twin barrel that provides a 10-day power reserve, providing energy to the tourbillon and second time-zone (GMT) display. The escapement, which beats with a frequency of 21,600 vph (3 Hz), rotates inside the tourbillon carriage every 60 seconds. The tourbillon cage consists of 85 components, yet weighs only .45 grams. Each cage requires 72 hrs to collect, including two full days to install, along with the entire mechanism represents a lot more than two full weeks on the job. Each component is beveled, polished, assembled and balanced by hand. Audemars Piguet's proprietary parallel double barrel system generates a continuing force during some 237 hours of autonomy, enhancing timekeeping precision.The GMT display on the 3 o'clock position, replica tag heuer maria sharapova watch which shows some time in the second time zone, is adjusted while using push-piece at 4 o'clock: each push advances enough time by sixty minutes. This indicator, based upon 12 hours, combines two superimposed disks. The 1st, on what the figures are inscribed, completes one turn every 12 hours. The next, just below it, completes one turn every One day and it's put into two colored halves that indicate whether it is daytime (white) or nighttime (black).The electricity from Caliber 2930's two 10-day barrels is fed in to the gear train at the same time on a single pinion bridging the 2. Audemars Piguet claims that this can be a gentler means of transmitting energy as opposed to more usual system of two series-linked five-day barrels. In addition, it reduces pressure inside gearing, with all the friction inside the barrels offsetting torque variations, and gives increased running precision, greater power reserve and enhanced reliability, as outlined by AP.The Royal Oak Concept GMT Tourbillon also comes with a selection-indicator mechanism. In accordance with the position of the winding stem, the hand positioned on the dial at 6 o'clock indicates its selected function. The "H, fake watches " "N," and "R" indications correspond to these positions, standing for time-setting, neutral, and winding, respectively.The watch is over a white rubber strap, which matches the white ceramic bezel, push-pieces and crown and is incorporated into the distinctive octagonal case.sharetweetshare replica antique mens watches
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