In truly outstanding crisp condition, this slim Nautilus 5712 power-reserve with blue/black dial is one of the world's most sought-after watches. Water-resistant to 60m, this 40mm stainless steel Gerald Genta designed Nautilus features a useful power-reserve indicator, moonphase, full 31-day calendar and subsiduary seconds at four. In extremely short supply, our example was purchased in the UK, and is fully complete with its original Patek Philippe box, Certificate of Origin, stylus and instruction booklets.