Item # WR4000164

The steel Nautilus, endowed with an Annual Calendar and moon-phase display, now features a new blue dial inspired from the dial color of the original Nautilus model of 1976. Horizontal embossing and subtle grading from blue to black at the dial"s periphery create a powerful yet refined aesthetic that perfectly complements the sheen of the metal.
This elegantly sporty exterior, water-resistant to 30 m, conceals a caliber 26-330 S QA LU 24H self-winding movement comprising 339 parts, which can be admired through a sapphire crystal case back.
Size: 40.5mm
Case material: Stainless steel
Dial: Blue, black gradated
Bracelet: Stainless steel
Movement: Automatic Caliber 26-330 S QA LU 24H/441U

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Patek Philippe Reference #: 5726/1A-014