Patek Philippe Complications Annual Calendar Moon Phases Date 39mm Yellow Gold 5146J-001 WHITE BLACK CROCODILE

The Patek Philippe 5712/1A-001 presents a modern interpretation of the Nautilus design, characterized by its distinctive porthole-inspired case and integrated bracelet. Crafted from stainless steel, the 40mm case features a combination of brushed and polished finishes, a signature of the collection. The blue-gray dial exhibits a subtle horizontal embossed pattern and is populated with the time, date, moon phase, and power reserve indicator in a balanced, asymmetric layout. The date sub-dial at 4:30 is a specific design element of this reference, contributing to its unique visual identity. The sapphire crystal case back provides a clear view of the movement, a feature highly valued by collectors.

This timepiece is powered by the self-winding caliber 240 PS IRM C LU. This movement is distinguished by its micro-rotor, which allows for a slimmer profile while providing a 48-hour power reserve. The complications include a date display, a moon phase indicator accurate to within one day in 122 years, and a center-sweep seconds hand. The power reserve indicator on the dial is a practical feature that informs the wearer of the remaining autonomy. The movement’s finishing is executed to a high standard, with Côtes de Genève striping on the bridges, beveled edges, and gold-filled engravings, all visible through the case back.

This particular example is offered in unworn condition, with its original protective plastics intact. It is a complete set, including the inner and outer boxes, warranty papers, and hang tags. As a current-production model from a highly sought-after collection, the 5712/1A-001 consistently commands significant attention on the secondary market. Its combination of a stainless steel case, complex functionality, and the prestige of the Nautilus line makes it a robust and desirable asset for any serious collection, representing a definitive modern sports watch from one of horology’s most respected manufacturers.