Patek Philippe
Nautilus 5712 Moonphase
5712/1A
The Nautilus refined — moonphase and power reserve in integrated steel
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Overview
The Patek Philippe 5712/1A is a stainless steel expression of the Nautilus line that layers classical complications — moonphase display, power-reserve indicator, and date — onto the collection's iconic integrated-bracelet architecture. Its 40 mm case retains the distinctive porthole-inspired bezel and horizontally embossed dial first conceived by Gérald Genta in 1976, while the asymmetric subdial arrangement gives the reference a quietly complex face. The result is one of the more technically ambitious entries in the Nautilus family, balancing sporting proportions with grand-complication sensibility.
History
The 5712/1A was introduced in 2006, extending the Nautilus line beyond its time-and-date roots into the realm of multi-complication sport watches. It was among the references that helped cement the modern Nautilus as a serious collector's piece rather than simply a luxury casual watch, drawing attention for pairing a robust stainless steel case with a movement of considerable refinement. The reference has remained in continuous production since its debut, accumulating a loyal following among collectors who prize the combination of the Nautilus silhouette and the added horological depth of the moonphase and power-reserve functions.
Notable points
- Powered by Calibre 240 PS IRM C LU, an ultra-thin automatic movement incorporating a peripheral rotor, moonphase, instantaneous jumping date, and power-reserve indication.
- The blue-black gradient dial features Patek Philippe's signature horizontal embossing, a design element traceable directly to the original 1976 Nautilus.
- Asymmetric subdial placement — with the moonphase aperture and power-reserve arc arranged off-centre — gives the dial a distinctive, architecturally considered layout.
- The 40 mm stainless steel case and integrated bracelet follow the porthole-bezel form introduced by Gérald Genta, maintaining visual continuity across the broader Nautilus family.
- As one of the few sport-category references to carry a moonphase complication at this case size, the 5712/1A occupies a singular position within Patek Philippe's stainless steel catalogue.
Specifications
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