As the reinterpretation of a design icon, the Ref. 5811/1G-001 Nautilus features a case and bracelet in white gold as well as a blue sunburst dial with a black gradation to the periphery. Water-resistant to 120 m and with a slightly enlarged diameter to 41 mm, the watch reflects its affinity with the original Nautilus of 1976 with a two-part case. It also features several subtle technical refinements and patented innovations: a secured fold-over clasp, a new lockable adjustment system, and a new pull-out piece lever system that replaces the split stem.

Sunburst blue with black-gradient rim, horizontally embossed, gold applied hour markers with luminescent coating. White gold. Screw-down crown. Water-resistant to 120 m. Sapphire crystal case back. Diameter (10–4 o’clock): 41 mm. Height: 8.2 mm. Patented fold-over clasp with lockable adjustment system. White gold. Date in an aperture. Sweep seconds.

Date in an aperture. Sweep seconds. Diameter: 27 mm. Thickness: 3.3 mm. Number of parts: 212. Jewels: 30. Power reserve: min. 35 hours – max. 45 hours. Winding rotor: 21K gold central rotor. Balance: Gyromax^®. Frequency: 28,800 semi-oscillations/hour (4 Hz). Balance spring: Spiromax^®. Hallmark: Patek Philippe Seal.