====== PP 30-255 ======

{{wst>image_cr|PP|30-255}}

Calibre **30-255 PS** is a [[manual winding]] watch movement from [[Patek Philippe]].

Flat movement with 28,800 A/h, high power reserve and small seconds. It is used in the model [[Patek Philippe Calatrava 6119]].

A special feature of the movement is its two mainspring barrels in a parallel arrangement. They relax together and engage with the central pinion, increasing the torque of the movement and allowing the deployment of a balance with twice the moment of inertia of 10 mg/cm2 (the highest of all Patek Philippe 4-Hz movements).

<WRAP ud ud_mov>
**Description:**
  * [[Manual winding]] movement
  * 2 [[barrels]]
  * [[Gyromax]]® [[balance]], [[Spiromax]]® [[balance spring]]
  * [[Patek Philippe Seal]]

**Functions:**
  * Hours, minutes
  * [[Small seconds]]
  * [[Stop seconds]]

**Data:**
  * Ø 31 mm, H 2.55 mm
  * 28,800 A/h
  * 27 [[jewels]]
  * Power reserve 65 hours
  * 164 parts

**Production period:**
  * [[2021]]-current
</WRAP>

{{tag>Movements Manual_winding_movements Double_barrel_movements Patek_Philippe_calibres}}