Jaeger-LeCoultre Répétition Minutes à Rideau Minute Repeater and Reverso Répétition Minutes à Rideau Venise Minute Repeater are undoubtedly the biggest stars at the SIHH Jaeger-LeCoultre booth at the 2012 Geneva Watch Fair. The mechanical structure of the two is exactly the same. In addition to the limited edition of 75 pieces, the Reverso Répétition Minutes à Rideau Minute Repeater Q235352O (as shown in the video), Jaeger-LeCoultre also launched a limited edition of 8 Reverso, Q235352M. Répétition Minutes à Rideau Venise Minute Repeater (as shown). The latter uses a blue-gold dial and bridge, and applies the classic geometric pattern of the Doge’s Palace of Venice on the edge of the dial.
 The case is the biggest feature of these two REVERSO rolling shutter minute repeaters. The curtain composed of 16 pieces of 18K white gold slats can slide back and forth between the two dials, so it is called the rolling curtain. The upper and lower ends of each slat of the curtain are fixed by links, like rails. The reversible case in 18K white gold has 270 parts-more than the complexity of most movements-in order to ensure the smooth sliding of the curtain and to wind the minute repeater mechanism.

Reverso Répétition Minutes à Rideau Venise Minute Repeater
By default, the roller blind covers the dial shown in the picture on the left
 By default, the curtain covers the dial that displays the escapement, and exposes the other dial that displays the minute repeater. At this time, when we pushed the curtain to slide away from the crown, a gear set composed of small gears, rollers, barrels, Malter cross wheels and other parts in the case worked together to transform the sliding movement of the curtain For rotary motion, winding up the three-question mechanism. When the curtain is loosened, the 16 platinum slats will spring back to their original position, covering the dial that can show the escapement again. At the same time, the minute repeater device is activated, and you can take a peek at the operation process of the minute repeater mechanism through the other dial, and listen to the beautiful sound of the gong. Of course, the button near the crown can control whether the curtain is wound by the minute repeater. When in another position, the curtain is separated from the winding mechanism of the minute repeater mechanism, and the curtain can slide between the two dials without triggering any function.

Reverso Répétition Minutes à Rideau Minute Repeater Video
 Since it is a three-question watch, then the Jaeger-LeCoultre Reverso Répétition Minutes à Rideau’s gong naturally needs more explanation. As everyone knows, the gong is the most basic vocal component in a minute repeater watch. In a piano, strings are struck by a small hammer to vibrate and sound. Similarly, the sound quality of a watch is mainly determined by its gong, while the case can enhance the sound effect and inject specific sound effects and timbre into it. In order to obtain the best sound effects, Jaeger-LeCoultre has developed a new gong spring for several years, and it is preferentially used in the 2007 Master Minute Repeater minute repeater watch. The gong is made of a unique alloy material and is integrally formed. Its cross-section is square instead of circular, so the contact surface with the hammer is larger and the strike is more powerful. However, for the Reverso Répétition Minutes à Rideau Minute Repeater, watchmakers must look for a gong suitable for rectangular movements. Therefore, they designed a special curved pattern for the double gongs of this watch to eliminate sharp edges and suppress the free propagation of shock waves.

Reverso Répétition Minutes à Rideau Venise minute repeater watch with special texture and blue gold dial bridge
 The silent adjusters of these two Reverso minute repeaters are different from traditional devices. They do not generate any noise that interferes with the minute repeater melody during operation. The lever with a platinum weight extends slightly outwards, fixing the sapphire On the wall, and like a drum brake, it relies on centrifugal force to slow the flow of energy. In addition, the watch also uses an all-or-nothing spring structure, which can ensure that the minute repeater will only time the clock when the barrel is fully tilted, to avoid the minute repeater stopping due to power exhaustion, which will cause the time error.
 Both watches are equipped with Jaeger-LeCoultre 944 manual-winding movements, consisting of 340 parts, with a thickness of 5.89mm. With 35 jewel bearings and two barrels, it drives the watch to achieve a power reserve of 35 hours at a vibration frequency of 21600vph / 3Hz. The case is carried in 18K white gold, the three-dimensional size is 55/35 / 12mm, waterproof 30 meters. With black or Venise blue alligator strap and 18K white gold buckle.