Patek Philippe Nautilus Travel Time Chronograph vs Patek Philippe Nautilus (first generation)

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

	Patek Philippe 5990/1A-001	Patek Philippe 3700/1A
Model	Nautilus Travel Time Chronograph	Nautilus (first generation)
Caliber	Patek Cal. CH 28-520 C FUS -- automatic flyback chronograph with second time zone, 28,800bph, 55h PR, 40j; column-wheel, vertical clutch; used in Nautilus 5990	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	40.5mm	42mm
Lug-to-lug	50mm	48mm
Years produced	2014–present	1976–1990
Brand tier	top-luxury	top-luxury
Era	modern	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, chronograph, sport, gmt-worldtime	integrated-bracelet, sport
Editorial	yes	yes
Typical price (2026)	$95,000 – $135,000	$80,000 – $150,000
Collector note	n/a	landmark: The Genta-designed original Nautilus; the porthole case language it introduced is still in production fifty years later.