Patek Philippe Caliber 26-330 S C Watch Movement

Manufacturer	Patek Philippe
Caliber Number	26-330 S C
Base Caliber	26-330
In-House?	Yes
Movement Type	Automatic, self-winding mechanical
Diameter	27mm
Height	3.3mm
Jewel Count	30
Total Components	212 parts
Beat Rate / Frequency	28,800 vph / 4 Hz
Lift Angle	Unconfirmed
Power Reserve	35 hours
Rotor Style	Ball-bearing
Hand-Windable?	Yes
Balance Wheel	Gyromax
Balance Spring	Spiromax
Balance Spring Material	Silinvar (monocrystalline silicon)
Anti-Shock Device	Incabloc
Hand Count	3
Functions	Central hours; central minutes; central sweeping seconds; date at 3:00
Hacking Seconds?	Yes
Finishing	21K gold rotor, perlage, damaskeening (stripes)
Country of Manufacture	Swiss made in Geneva, Switzerland
Known Models	Patek Philippe Cubitus (Ref: 5821/1A-001, 5821/1AR-001), Calatrava (Ref: 6007G-001, 6007G-010, 6007G-011, 5226G-001, 5227G-101, 5227R-001, 5227J-001), Nautilus (Ref: 7118/1A-001, 7118/1A-010, 7118/1A-011, 7118/1R-001, 7118/1R-010, 7118/1200A-001, 7118/1200A-010, 7118/1200A-011, 7118/1200R-001, 7118/1200R-010, 7118/1300R-001,5811/1G-001, 5719/10G-010), Aquanaut (Ref: 5167A-001, 5176R-001, 5167/1A-001, 5186G-001, 5168G-101, 5268/200R-010, 5072R-001), Twenty-4 (Ref: 7300/1200A-001, 7300/1200A-010, 7300/1200A-011, 7300/1200R-001, 7300/1200R-010) (Add your watch to the comments below…)

The Patek Philippe caliber 26-330-SC is a basic 3-hander automatic movement with a date calendar complication.

At the time of this article, the 26-330 S C is found in 34 watches in the Patek Philippe catalog, including the Nautilus and Aquanaut.

Among the models using this movement, the 26-330 S C is also found in the controversial Cubitus collection of watches which were introduced in October 2024.

Variations:

The 26-330 S C actually has two versions depending on the date location, which also affects the printing on the datewheel.

26-330 S C/430 – Date at 3:00
26-330 S C/ 435 – Date at 6:00

There is also a similar cal. 26-330 S, which is a true no-date version.

Accuracy Rating:

Patek Philippe movements, such as the 26-330 SC being discussed on this page, leave the factory tested at an average accuracy of -1 to +2 seconds per day.