Patek Philippe Nautilus Annual Calendar 5726/1A-001

The Patek Philippe Nautilus 5726/1A-001 is a distinguished luxury sports watch that masterfully blends iconic design with advanced horological complications.

Key Features

• Case & Bracelet:

  • Material: Stainless steel

  • Diameter: 40.5 mm

  • Thickness: 11.3 mm

  • Integrated stainless steel bracelet with a fold-over clasp

  • Water resistance: 120 meters (393 feet)

• Dial:

  • Color: Gradient grey/black with horizontal embossing

  • Applied white gold hour markers and hands with luminescent coating

  • Day, date, and month displayed in apertures at the top

  • Moon phase and 24-hour subdial at 6 o’clock

  • Highly legible and balanced layout

• Movement:

  • Caliber: 324 S QA LU 24H/303 (self-winding automatic)

  • Power reserve: 35–45 hours

  • Functions: Annual calendar (requires adjustment only once per year), moon phase, 24-hour indication, sweep seconds

  • Exhibition sapphire crystal case back to view the movement

• Design:

  • Signature porthole-inspired, rounded octagonal bezel

  • Brushed and polished finishing for a refined, sporty look

  • Ergonomic fit and timeless Nautilus silhouette

Complications

• Annual Calendar:
  Displays day, date, and month, requiring only one manual correction per year (at the end of February).

• Moon Phase:
  Accurate moon phase display, needing adjustment only once every 122 years.

• 24-Hour Indication:
  The subdial at 6 o’clock tracks day/night.

Why It’s Special

• Combines the elegance and versatility of the Nautilus line with Patek Philippe’s technical mastery.

• The annual calendar and moon phase complications add both practicality and visual intrigue.

• Its robust yet refined design makes it suitable for both formal and casual settings.

• Highly sought after by collectors for its rarity, craftsmanship, and investment value