Patek Philippe Nautilus Moon Phase 5712

Movement

• Uses Caliber 240 PS IRM C LU (self-winding) Micro-rotor in 22k gold to keep the movement slim.
• Beats at 21,600 vph (3 Hz).
• Power reserve: ~38–48 hours.
• Complications Moon‑phase indicator:  shows the lunar cycle.
• Date: via a hand that points to the date around the moon-phase subdial.
• Power-reserve indicator: on the dial (usually around 10–11 o’clock) to show how much power is left.
• Small seconds: subdial (often around 4–5 o’clock).

Case & Dial

• Case diameter: 40 mm. Thickness: ~8.52 mm (very slim for a complicated watch).
• Stainless steel version has a horizontally embossed blue‑black dial.
• Applied white‑gold hour markers, often with luminous coating.
• Sapphire crystal on the front; the case back is also sapphire so you can see the movement.

Water Resistance

• Water-resistant up to 60 meters (6 ATM) per some sources.
• Other Uses Patek’s Patek Philippe Seal, meaning high finishing quality.
• Very wearable despite complications because of the slim case and elegant design.
• Setting the Moon Phase There is a corrector button for the moon-phase.
• You need to know the date of the last full moon (or current moon phase) to set it precisely, using Patek’s guide.