18k white gold case in 41 mm; featuring an octagonal middlecase embedded within a round case. Manual winding movement caliber 2953 (based on the caliber 2937 from the Royal Oak Concept Supersonnerie). The gongs are not attached to the main plate as usual, but they are attached to a device that acts as a soundboard amplifying the sound. The case back is perforated to allow sound to pass through without restrictions. The redesigned regulator eliminates unwanted noise thanks to its more flexible anchor system. While most minute repeaters on the market are not water resistant; this watch is water resistant to 20 metres / 66 feet. Priced at 295,000CHF