====== PP 324 ======

{{wst>image_cr|PP|324}}

Calibre **PP 324** is an [[automatic]] watch movement from [[Patek Philippe]].

This is Patek Philippe's current central-rotor automatic movement, replacing [[PP 315|Cal. 315]] from [[2004]].

===== Info =====
While Patek Philippe had an excellent and respected automatic watch movement in their [[PP 315|Cal. 315]], the company set about improving it in the 2000's. The result was Cal. 324, an improvement in almost every way even though the basic architecture and shape was the same as its predecessor. The first notable difference was the oscillation rate Cal. 324 beats at a now-standard 28,800 A/h for improved accuracy and consistency. The rotor is also larger, increasing power generation to reach a respectable but not excellent 35-45 hours of reserve of power.

Inside, Cal. 324 has a new-generation [[Gyromax]] balance wheel with four spokes (up from 2) and four tunable weights (down from 8) placed around the rim rather than inside it. This new movement also features new wheel tooth geometry, a bipartite minute train bridge, asymmetric date train, reinforced winding wheel, and lower-friction wheel arbor pivots.

The basic model, Cal. 324 S C, measures 27 mm in diameter and 3.3 mm thick. Patek offers a number of complications on this platform, increasing the thickness to as much as 5.78 mm, and also offers wider models at 30, 31, 32.6, and even 33.3 mm in diameter.

Cal. 324 is Patek Philippe's mainstream automatic movement and features a full-sized central winding rotor. The company also uses a [[micro rotor]] movement, [[PP 240|Cal. 240]], where a thinner model is required, and still equips a few models with the older [[PP 315|Cal. 315]] as well.



===== Advanced Research =====
In [[2006]], [[Patek Philippe Advanced Research|Patek's Advanced Research project]] yielded its first Cal. 324 project: They paired the [[silicon]] [[escape wheel]] found on the [[PP 315#Advanced Research|Cal. 315 AR movement]] with a new "Spiromax" flat silicon [[hairspring]]. This was used in their [[Patek Philippe Annual Calendar 5350|Annual Calendar, Ref. 5350]], this time with 300 pieces produced.

===== Variants =====

^ Calibre^ Dimensions (mm)  ^ Jewels  ^ Parts  ^ Usage ^ Features ^
|[[PP 324|324]]| Ø 27, H 3.3|29|182 |[[Patek Philippe Calatrava 5062|Calatrava 5062]] |No seconds| 
|[[PP 324|324 S]]| Ø 27, H 3.3|29|182 |[[Patek Philippe Calatrava 7118|Calatrava 7118]] |[[Gyromax]]® [[balance]], [[Spiromax]]® [[balance spring]]| 
|[[PP 324|324 S C]]| Ø 27, H 3.3|29|217 |[[Patek Philippe Calatrava 5227|Calatrava 5227]], [[Patek Philippe Calatrava 5296|Calatrava 5296]], [[Patek Philippe Nautilus 5711|Nautilus 5711]], [[Patek Philippe Nautilus 7118|Nautilus 7118]], [[Patek Philippe Aquanaut 5168|Aquanaut 5168]] |  |
|[[PP 324|324 S C FUS]]| Ø 31, H 4.82|29|294 |[[Patek Philippe Aquanaut Travel Time 5164|Aquanaut Travel Time 5164]]|[[Date]], [[second time zone]] |
|[[PP 324|324 S IRM QA LU]]| Ø 30, H 5.32|36| |[[Patek Philippe Annual Calendar 5350|Annual Calendar 5350]], [[Patek Philippe Annual Calendar 5450|Annual Calendar 5450]] |[[Annual calendar]], [[moon phase]], [[power reserve indicator]],\\ [[Silinvar]] [[escape wheel]] with Silinvar [[Spiromax]] [[balance spring]] |
|[[PP 324|324 S Q]]| Ø 32, H 4.97|29|367|[[Patek Philippe Perpetual Calendar 5320|Perpetual Calendar 5320]] |[[Perpetual calendar]] with [[day/night indication]],\\ [[Gyromax]]® [[balance]], [[Spiromax]]® [[balance spring]]|
|[[PP 324|324 S QA LU]]| Ø 30, H 5.32|34| |[[Patek Philippe Annual Calendar 4947|Annual Calendar 4947]] |[[Annual calendar]], [[moon phase]]|
|[[PP 324|324 S QA LU 24H/206]]| Ø 32.6, H 5.78|34|356|[[Patek Philippe Annual Calendar 5205|Annual Calendar 5205]] |[[Annual calendar]], [[moon phase]], [[24-hour]],\\ [[Gyromax]]® [[balance]], [[Spiromax]]® [[balance spring]]|
|[[PP 324|324 S QA LU 24H/303]]| Ø 33.3, H 5.78|34|347 |[[Patek Philippe Annual Calendar 5396|Annual Calendar 5396]] |[[Center seconds]], [[annual calendar]], [[moon phase]], [[24-hour]],\\ [[Gyromax]]® [[balance]], [[Spiromax]]® [[balance spring]] |
|[[PP 324|324 S QR]]| Ø 28, H 5.35|30|361|[[Patek Philippe Perpetual Calendar 5160/500G|Perpetual Calendar 5160/500G]] |[[Perpetual calendar]] with [[retrograde]] [[date]] hand|

===== See also =====
  * [[PP 315]], the predecessor
  * [[PP 240]], the current [[micro rotor]] automatic movement


<WRAP ud ud_mov>

**Manufacturer:**
  * [[Patek Philippe]]

**Description:**
  * [[Automatic]] movement

**Functions:**
  * Hour/minute
  * [[Center seconds]]

**Data:**
  * 28,800 A/h
  * 27-33.3 mm wide, 3.3-5.78 mm high
  * 29, 30, 34, 36 jewels
  * 35-45 hours power reserve

**Production period:**
  * [[2004]]-current
</WRAP>

{{tag>Movements Automatic_movements Patek_Philippe_calibres}}