Welcome to my Top Swiss Wristwatches Boutique! Manufacture Jaeger-LeCoultre SA is Swiss luxury watch manufacturer founded by Antoine LeCoultre in 1833, based in Le Sentier, Switzerland. It has hundreds of inventions, patents, and more than one thousand movements to its name, including the world's smallest movement, one of the world's most complicated wristwatches (Grande Complication), and a timepiece of near-perpetual movement; in short, Jaeger-LeCoultre is one of the biggest names in the watchmaking world. With its compressor key system the manufacture Jaeger-LeCoultre invented a practical alternative to the conventional screw-in crown Even with a single half-turn of the compression key, the crown can be fully opened or closed; when closed, complete sealing is attained by the pressure on a cone located inside. Both states are clearly indicated by red and white arrows. So you do not have to remember, as with the old system, how tight you have to turn or to test back and forth until the screw engages. In addition, the new solution, patented by Jaeger-LeCoultre, the same applies for Chronograph pushers, where a significant improvement in handling is also provided. The design for the overall Master Compressor line was credited to Magali Métrailler, Jaeger-LeCoultre's first female designer. Since the first introduction of this invention, from the first models equipped with it a whole series of watches is derived, which includes sports models and also dive watches, for women and for men respectively. After most of the JLC watches production was achieved through the classic Reverso not too long ago, the brand managed to provide an important additional pillar with the Master Compressor series. It scores particularly with the superior production quality of the models, ranging from manufacture movement to the good case processing to the self-confident and sporty appearance. There are plenty of offers on the market who are priced much lower, but a Jaeger-LeCoultre is and will always be something special. It permanently retains its value. Where other brands are trying to draw attention by loud PR campaigns, here always the watches themselves and their high production standards stand at the center. The offered beautiful model in the series Master Compressor, presented in spring 2007, has - especially for a chronograph - a huge water resistance up to a depth of 1,000 meters. Here the benefits from the special design of the compression key system developed by Jaeger-LeCoultre are used, where not just the crown, but also the chrono pushers can be sealed perfectly and very practically, namely without long screwing. At this depth already a pressure of 890 kilos weighs on the 3.60 mm thick sapphire crystal - roughly the weight of a small car! By means of its two barrels the watch features the extraordinary power reserve of 65 hours. The blue white display of the power reserve can be read at a semicircular recess at 6 o'clock. Like all models from the Master Control series also this one has to pass the strict 1,000 hours test in accordance with the company's internal demands from Jaeger-LeCoultre. Movement: - self winding in-house JLC 751 calibre - twin barrels, coupling column wheel chronograph with vertical coupling system - 65 hours power-reserve - 41 jewels - 272 components - vibrations: 28.800A/h - is well known for its precise action Case: - titanium, polished/brushed - 44mm excl. crowns; 50,5mm incl. crown - 16mm thick - length: 51mm from lug to lug - unique No: 2****7 (for buyer only), best confirmation of authenticity Crown and pushers with patented compression key system Domed sapphire crystal with anti-glare treatment Screw-in case-back with engravings Bezel: - titanium - brushed/polished - diving 0 - 60 - unidirectional turning with grooved edge for comfortable use Dial: - black with three sub-dials with following functions: chrono function hours, 30-minutes, central seconds, pulsometer - date aperture at 04:45 o'clock - silver polished hands, Arabic numerals and stylish hour batons - internal bezel with pulsometer scale - power reserve indicator at 06:00 o'clock - minutes and seconds markers around outer rim Bracelet: - titanium, fine brushed - authentic Jaeger-LeCoultre diving - length ca. 21,5cm incl. wristwatch itself - width: 22mm - double folding titanium clasp with logo Water-resistant: 100ATM/1000meters Weight: 170 grams Distinctive design. High recognition value. Excellent condition, never worn: the wristwatch comes from luxury watch-shop showcase. General professional pre-sale service was made in March 2024: the watch is keeping good time and working perfectly. Chic Jaeger-LeCoultre 'Master Compressor Extreme' watch box (see pics), very heavy. Distributor's stock: the certificate isn't stamped. My personal authenticity and quality warranty: you will get warranty card (as pictured), fully completed and signed on the back. Insured, registered shipping worldwide with DHL Express: it’s not cheap, especially because of this big, heavy watch box, and yet fast and reliable, two days in Europe, three days worldwide. You can reduce the cost of delivery by abandoning this heavy box. Great chance for connoisseurs and for those who are looking for a profitable investment! Everything you see in my pics is included in the package that you'll receive. NO EXTRA COSTS for EU Buyers!