Patek Philippe Nautilus 5726/1A-001

A more technical expression of the Nautilus—without losing what makes it iconic.

The 5726 brings together Patek Philippe’s annual calendar complication with the everyday wearability the Nautilus is known for. Day, date, month, moonphase, and power reserve are all seamlessly integrated into a dial that remains balanced and easy to read—something few complicated sports watches manage to achieve.

The 40.5mm stainless steel case, paired with the signature octagonal bezel, wears comfortably across settings. The blue dial shifts subtly in different lighting, giving the watch presence without ever feeling loud.

Powered by the Caliber 324 S QA LU 24H/303, this piece delivers reliable performance with a 45-hour power reserve—built for daily use, not just occasional wear.

This is where complication meets versatility. A piece that works just as well in a meeting as it does off the clock.

Key Details

• Reference: 5726/1A-001
• Case Size: 40.5mm
• Material: Stainless Steel
• Dial: Blue with horizontal embossing
• Complications: Annual Calendar (day, date, month), Moonphase, Power Reserve, 24-hour indicator
• Movement: Caliber 324 S QA LU 24H/303
• Power Reserve: ~45 hours
• Bracelet: Integrated stainless steel

Our Take

The 5726 sits in a unique position within the Nautilus lineup—offering real complication without sacrificing wearability. For collectors who want more than time and date, but still value a clean, daily piece, this is one of the strongest references in the category.

Quietly one of the most complete Nautilus configurations.

Set Contents

This like-new 2020 example comes as a complete set including:

• Reference 5726/1A-014 confirmed on the Patek Philippe certification (papers).
• Full set includes inner and outer box, leather holder, and booklets.
• Fully linked signature Patek bracelet with fold-over clasp.