The Jaeger - LeCoultre Master Minute Repeater Model # 164.24.5J (Q164245J) is limited to 15 pieces. Its mechanical movement completes 21,600 vibrations per hour and has a 35-hour power reserve. This Jaeger-LeCoultre Master Minute Repeater 164.24.5J is housed in polished 18K rose gold case and bezel. It also has a black alligator strap with a skeletonized and sunburst dial and a sapphire crystal caseback. The 1.85-mm thick Jaeger-LeCoultre 164.24.5J is water resistant down to 50 meters (165 feet) which makes it suitable for showering or swimming in shallow water.