Breguet’s New Classique Chronométrie 7727 Watch

The release of Breguet’s new Classique Chronométrie 7727 watch proves that Breguet has achieved its goal, giving a new definition of perfect watchmaking.

 With its pioneering spirit of innovation, Breguet has made great contributions to improving the accuracy of clocks by virtue of many inventions. However, Breguet is not just immersed in a glorious past and stopped. On the contrary, it continues to search for watchmaking and invests in research and development of innovative technologies and materials. In the past 10 years, the brand has applied for more than 100 patents, and most of the patents are related to timing technology and sound devices. The patented Magnetic Pivot system, which became effective on November 7, 2010, is related to magnetic technology. Breguet pioneered the use of magnetic effects to improve the accuracy and reliability of watches. The launch of the new Classique Chronométrie 7727 proves that Breguet has achieved its goal, giving a new definition of perfect watchmaking.

 Breguet’s latest masterpiece uses a rose or white gold case and is equipped with a 574DR movement. It is a hand-wound time-lapse movement with the latest research and development achievements. Its excellent travel time is derived from the ultra-high frequency of 10 Hz. Its first appearance was loaded in the Chronographe Type XXII chronograph, and it proved the improvement of the chronograph balance spring. Thanks to the brand’s expertise in silicon technology, the new Classique Chronométrie watch is equipped with a specially designed silicon double balance with hairspring, silicon pallet, silicon escape wheel, making this watch not only ultra-high Vibration frequency and excellent precision. In other words, it improves the best timepiece adjustment power, which is generally between 300-400 microwatts, to 830 microwatts. With outstanding kinetic energy storage barrel technology and the use of high-quality lightweight silicon, Breguet has a high-frequency 7727 watch with a power reserve of up to 60 hours.

 However, if the Breguet Classique Chronométrie watch is a major technological breakthrough, it is the application of the Magnetic Pivot magnetic system. Perhaps, in a few years, this technology will be more widely used. The advent of the Magnetic Pivot system enabled Breguet not only to control the negative effects of magnetic force in mechanical watches, but also to tame the magnetic force, allowing it to serve to improve the rotation, rotation and stability of the balance wheel. The basic concept is to use two jewel bearings to combine strong micro-magnets (approximately 1.3 T), and each of them is connected to the two ends of the balance axis. Adjusted dynamic balance system.

 When one side’s magnetic force is stronger than the other side, one end of the balance axis maintains stable contact with the ruby ​​bearing (supporting stone) of the bearing. Rotary inertial force. Because the magnetic coupling between the shaft center and the jewel bearing is stronger than gravity, the shaft center will continue to be affected by the jewel bearing regardless of the orientation of the watch. In addition, this system also acts as a shock absorber. If the gear shaft tip is offset to an improper position, the magnetic force will pull it back and increase the lateral displacement range of the gear shaft tip. When the magnetic returns the maximum fluctuation, the axis will automatically return to its correct position. In this way, in the artificial gravity environment, the axis of the balance wheel is completely unaffected by the gravity, and is more stable and more effective in earthquake resistance. The performance test result of the 7727 watch incorporating a number of innovative technologies is an average error of -1 / + 3 seconds per day, which is much better than the -4 / + 6 seconds standard of the COSC Swiss official observatory. More importantly, the average daily error detected at 6 positions was reduced to -2 / + 4 seconds (at maximum power).

 The 574DR movement itself is undoubtedly a major invention. Naturally, the case of the Classique Chronométrie watch equipped with it must also be carefully designed to match its pioneering qualities. The dial is designed as an eccentric hour and minute dial. A small second hand is set at 12 o’clock. The power reserve is displayed at 5 o’clock. The patented silicon hands in tenths of a second are located on the small second dial at 1 o’clock. The classic shock-absorbing design makes the travel lighter without affecting the rhythm of the balance wheel. The pare-chute suspension is clearly visible at 2 o’clock, which once again shows the vision of Breguet’s innovative craftsmanship in 1790, while also making the watch thinner.

 Every detail of the craftsmanship reveals Breguet’s ingenious watchmaking skills. The dial is carefully crafted with 6 different patterns by hand: Geneva ripple on the center dial, Paris studs on the small seconds dial, and one tenth of the sun Light motifs, herringbone motifs in the power reserve position, classic hour stripes on the hour ring and wheat grains on the outer edges. The polished Breguet blue-steel hands, the rose gold and white gold cases are decorated with elegant coin patterns, welded lugs, independent numbers and Breguet concealed signature marks on the outer edge of the case. A 30-meter water-resistant watch looks like an art treasure. The watch is equipped with a leather strap, and the sapphire crystal case back is clear and transparent, which shows the complexity and exquisiteness of the inner machinery.

Classique Chronométrie 7727 watch technical parameters

No. 7727BR / 12 / 9WU

Case: 18K rose gold, coin-embossed on the outer edge. Sapphire crystal case back. 41 mm diameter, welded lugs, screw-in crown. Water-resistant to 30 meters.

Dial: 18K gold plated silver, a total of 6 different hand-engraved patterns, with independent numbering and signature Breguet. Roman numerals, small seconds at 12 o’clock, small seconds at 1/10. Breguet polished blue steel hands.

Movement: Manual-winding mechanical movement with stop-seconds function, engraved with independent number and BREGUET. Cal. 574DR, 14 legal minutes, 45 rubies, power reserve 60 hours, power reserve display at 5 o’clock. Double barrel, silicon lever escapement in silicon, 180 degree flat silicon balance spring, 10 Hz frequency, Magnetic pivot magnetic system. 6 orientation adjustment.

Strap: leather, three-fold folding clasp.

Also available in platinum, number: 7727BB / 12 / 9WU