The reference that put a perpetual calendar into the Nautilus for the first time, and which Patek Philippe describes as the first grand complication in the collection. It runs the calibre 240 Q, the micro-rotor perpetual calendar movement Patek has used since the reference 3940, which is what lets the white gold case stay 8.42mm thick.
Reference record
Production
2018–present
Model
Nautilus Perpetual Calendar
Case material
18k White Gold
Case size
40mm
Movement
Automatic
Calibre
Cal. 240 Q
Dial colours
Blue
Market value band
$220k – $320k
Timeline
2018Introduced as the first grand complication in the Nautilus collection
Notable
—40mm across and 8.42mm thick, in white gold with an integrated bracelet.
—Indicates day, date, month, leap year and moonphase on a blue sunburst dial with the horizontal Nautilus embossing.
What the specification implies
—The slim case height follows from the micro-rotor architecture rather than a full-rotor movement.
—Through the sapphire caseback the calibre 240 Q shows a gold micro-rotor recessed into the movement plate, not a full rotor sweeping across it.
Common questions
When was the Patek Philippe 5740/1G produced?
The 5740/1G has been in production since 2018.
What movement does the Patek Philippe 5740/1G use?
The Patek Philippe 5740/1G runs the Cal. 240 Q, an automatic movement.
How do I check a Patek Philippe 5740/1G with Watch Safe?
Look up the watch's serial number in the Watch Safe registry to see whether a record exists or a theft flag is attached. A registry search identifies records for a specific serial; it does not authenticate the watch. Authentication is performed in person by an independent expert authenticator, and Watch Safe records and publishes the result.