2019 PATEK PHILIPPE NAUTILUS ANNUAL CALENDAR MOON PHASE GREY DIAL 40MM 5726/1A-001

Sporty by design, sophisticated by complication — the Patek Philippe Nautilus 5726/1A-001 brings moonlight and mastery to the wrist in a rare blend of athletic steel and high horology.

Introduced as part of the iconic Nautilus lineage, this 2019 model redefines casual elegance with its stainless steel architecture and horizontally embossed grey dial — a smoky gradient that shifts from charcoal to silver, echoing the mystery of the moon phase complication it houses.

The 40.5mm case is signature Nautilus: bold yet balanced, with its instantly recognizable porthole-inspired bezel and integrated bracelet. But beneath the surface, Patek’s mechanical artistry reveals itself. The annual calendar complication effortlessly tracks day, date, and month, needing adjustment only once a year. At 6 o’clock, the moon phase display adds a poetic touch, grounded by a 24-hour subdial.

Powering this horological marvel is the Caliber 324 S QA LU 24H/303 — an automatic movement with a 35-45 hour power reserve, finished to Geneva Seal standards and visible through a sapphire crystal caseback.

It’s a watch that bridges worlds: sporty yet refined, complex yet wearable. For the discerning collector, the Nautilus 5726/1A-001 is not merely a timekeeper — it’s a declaration of quiet sophistication.

Specifications:
Model: 5726/1A-001
Year: 2019
Case Size: 40.5mm
Case Material: Stainless Steel
Dial: Gradient Grey with Horizontal Embossing
Functions: Annual Calendar, Moon Phase, 24-Hour Indicator, Day, Date, Month
Movement: Patek Philippe Caliber 324 S QA LU 24H/303, Self-Winding
Power Reserve: 35–45 Hours
Bracelet: Integrated Stainless Steel Bracelet
Water Resistance: 120 meters / 394 feet

A complication-clad icon in steel — the 2019 Nautilus Annual Calendar is a rare glimpse into Patek Philippe’s genius, wrapped in everyday elegance.