BRANDS: Parmigiani Fleurier
Cal. PF331 was the first fully in-house watch movement for Parmigiani Fleurier. Introduced in 2001, it has become the base for a range of automatic movements from the company. It features two mainspring barrels in series for 50 hours of power reserve. It has uni-directional automatic winding in the clockwise direction.
Viewed from the back with the crown at 9:00, the balance is placed at 8:00 on a clockwise cock. The central winding rotor is held with three screws and has seven ball bearings visible.
Hermès P1928 and H1837
In 2006, Hermès invested in 25% ownership of Vaucher Manufacture, along with Parmigiani. The company initially produced a version of Cal. PF331 for Hermès called P1928.
|Calibre||Start Year||End Year||Jewels||Diameter (mm)||Height (mm)||Complications|
|PF315||Current||46||28.00||6.10||2-Button, Chronograph, Date|
|PF317||2017||Current||28||35.60||5.40||24 Hour Hand, Date, Date by Pointer, Day/Night Indicator, GMT Hand, Independently-Adjustable 12 Hour Hand, Retrograde Date|
|PF333||2002||Current||32||27.00||5.50||Date, Day, Leap Year, Month, Moon Phase, Perpetual Calendar, Retrograde Date|
|PF334||2007||Current||68||30.30||6.80||2-Button, Chronograph, Column Wheel Chronograph, Date, Quick Date Correction|
|PF335||2010||Current||68||30.30||6.80||2-Button, Chronograph, Date, Flyback Chronograph, Modular Chronograph|
|PF337||2010||Current||38||35.60||5.10||24 Hour Hand, Date, Day/Night Indicator, GMT Hand, Independently-Adjustable 12 Hour Hand|
|PF339||2012||Current||32||27.10||5.50||Annual Calendar, Date, Day, Day by Pointer, Month, Month by Pointer, Moon Phase, Retrograde Date|