Limited to only 300 pieces, ours is No. 298... 

This extremely rare Duomètre à Chronographe ingeniously solves the traditional chronograph's single greatest technical problem: how to operate a stop-watch without interfering with the underlying timekeeper's power supply and precision. The solution is unique among wristwatches - first, give the stop-watch its own power supply, (a second mainspring that is wound by turning the crown in reverse), and secondly, banish the imprecise "clutch" that usually links the parts together. Instead, a special escapement allows the stop watch (blue hands) to sample the time to 1/6th of a second, whilst the time is independently displayed with relentless precision by the gold hands of this magnificent 42mm solid yellow gold gents watch. This Jaeger is in pristine condition, and is supplied with its beautiful mahogany box, watchmaker's magnifying loupe, Jaeger stamped certificate, JLC service history & operating instructions.