The Reference 5740/1 Nautilus is Patek Philippe’s debut Grand Complication within the Nautilus line. It seamlessly merges sporty elegance with technical prowess. It is powered by the ultra-thin Caliber 240 Q, making it the brand’s slimmest perpetual calendar watch.

Its blue sunburst dial is adorned with gold-applied hour markers with a luminescent coating for clarity. The white gold case, water-resistant to 30 meters, measures 40 mm in diameter and 8.42 mm in height, underscoring its sleek profile. The watch is secured by a new white gold bracelet with a patented fold-over clasp for enhanced security.