Patek Philippe Nautilus Moon Phase Power Reserve vs Patek Philippe Nautilus (first generation)

Side-by-side at a glance. Click a watch above to open the full reference page.

	Patek Philippe 5712/1A-001	Patek Philippe 3700/1A
Model	Nautilus Moon Phase Power Reserve	Nautilus (first generation)
Caliber	Patek Cal. 240 PS IRM C LU -- ultra-thin automatic with perpetual calendar, moon phase, and power reserve, 19,800bph, 48h PR, 33j; micro-rotor; used in 5712 Nautilus	Patek Cal. 28-255 C -- ultra-thin automatic with date, 19,800bph, 40h PR, 29j; 3.71mm thick; integrated winding; used in 3700 Nautilus
Case size	40mm	42mm
Lug-to-lug	48mm	48mm
Years produced	2006–present	1976–1990
Brand tier	top-luxury	top-luxury
Era	neo-vintage	vintage
Movement tier	Unclassified movement	Unclassified movement
Market median (excellent / full-set)	n/a	n/a
Typical range	n/a	n/a
Confidence	low	low
Categories	integrated-bracelet, sport	integrated-bracelet, sport
Editorial	yes	yes
Typical price (2026)	$52,000 – $72,000	$80,000 – $150,000
Collector note	best value: Nautilus with moonphase and power reserve at a comparable secondary price to the 5711, offering substantially more complication.	landmark: The Genta-designed original Nautilus; the porthole case language it introduced is still in production fifty years later.