Patek Philippe Nautilus Moon Phase 5712/1A

In-Depth Review

The Patek Philippe Nautilus Moon Phase 5712/1A is one of the most complete expressions of the Nautilus concept, combining the Gerald Genta sports watch design with three sophisticated complications in a single 40mm stainless steel case. The Caliber 240 PS IRM C LU is an ultra-thin automatic movement just 3.88mm thick that manages to pack a date display, a moonphase indicator accurate to approximately one day every 122 years, and a power reserve indicator into a coherent and legible dial layout. The blue-black gradient dial maintains the iconic horizontal embossing of the Nautilus family while accommodating three subdials that add visual complexity without cluttering the design.

Introduced in 2006, the 5712/1A has become one of the most respected references in the Nautilus lineup, appreciated by collectors who want more mechanical substance than the time-and-date 5711 but prefer not to step up to the larger Nautilus Chronograph 5980. The integrated stainless steel bracelet and 120-meter water resistance preserve the everyday wearability that makes the Nautilus so practical despite its elevated price. Competing watches include the Audemars Piguet Royal Oak Moonphase 15551 and the Vacheron Constantin Overseas Moonphase, though neither matches the secondary market demand that the Patek commands.

The gap between the 5712/1A's MSRP of $52,530 and its secondary market price of approximately $120,000 tells a clear story about demand outstripping supply. Unlike the discontinued 5711, the 5712 remains in current production, yet authorized dealer waiting lists stretch for years. This makes it both a desirable wearing piece and a strong store of value. For the collector who wants a single Nautilus that offers genuine complication depth, everyday wearability on a steel bracelet, and the slim profile that only a micro-rotor movement can achieve, the 5712/1A is arguably the smartest choice in the entire Nautilus range.