Patek Philippe Calatrava 5328G-001 With New 31-505 8J PS IRM CI J movement

The Patek Philippe Calatrava 5328G-001 is equipped with the new 31-505 8J PS IRM CI J manual-winding movement. This movement has been developed for five years. It follows the basic structure of the 28-20 REC 8J PS IRM C J rectangular movement released in 2013 (equipped with the Ref. 5200 Gondolo eight-day power reserve day and date display watch), and adopts a circular design to fit the Calatrava round case. In addition, the new movement also incorporates a number of optimized functions and innovative technologies, especially the energy consumption management and the day/date instantaneous jump display function, which highlights the pioneering spirit of Patek Philippe. Its precision design ensures that the watch can run accurately for up to eight days. When the power reserve is consumed to the ninth day, the arched power reserve display at 12 o'clock will be marked in red. Although the watch will continue to run on the ninth day, the accuracy may be reduced due to the reduced amplitude of the balance wheel. To ensure optimal performance, it is recommended to wind the watch in time by the end of the eighth day at the latest (the movement will stop at the end of the ninth day). Best Patek Philippe Calatrava clone watches online, buy replica watches at firstwatchclone.co.

The new 31-505 8J PS IRM CI J caliber is equipped with a technologically advanced regulating organ that is extremely difficult to manufacture. This movement is equipped with Patek Philippe's exclusive Pulsomax® escapement, whose escape wheel and pallet fork are made of Silinvar®, a silicon-based material with excellent physical and mechanical properties, lightness, toughness and anti-magnetic. As an important result of the "Patek Philippe Advanced Technology Research" project, the Pulsomax® escapement has a special geometry of escape wheel and pallet fork, and is precision-machined by the Deep Reactive Ion Etching (DRIE) process, which has excellent performance and long-term stability and reliability. Assisted by the Spiromax® balance spring also made of Silinvar® (another "Patek Philippe Advanced Technology Research" result), the movement provides a power reserve of up to eight days. The new Calatrava Ref. 5328G-001 is the fourth timepiece in Patek Philippe's regular collection to be equipped with a Pulsomax® escapement, following the Ref. 5235 Regulator Annual Calendar (caliber 31-260 REG QA) launched in 2011, the 1/10 second monopusher chronograph Ref.5470P-001 (caliber CH 29-535 PS 1/10) launched in 2022, and the Ref. 5200 Gondolo 8-day power reserve day and date display (caliber 28-20 REC 8J PS IRM C J) unveiled in 2013.

Two series-connected barrels store enough energy to keep the movement running accurately for up to eight days, with an additional ninth day of power reserve. The main barrel is equipped with a sliding spring. When the watch is wound manually, both barrels store energy simultaneously. When the main barrel releases power, the auxiliary barrel transfers energy to the main barrel and replenishes it according to the principle of communicating vessels. The new Calatrava 8-Day watch Ref. 5328G-001 is equipped with special functions and long-term power reserve, and adopts an ingenious display layout. The auxiliary dial at 12 o'clock is equipped with a transferred arched power reserve display scale, and the 6 o'clock position is equipped with an aperture-type week display, a pointer-type date display and a small second hand dial. The display layout distributed along the vertical axis is very easy to read, injecting a unique personality into the dial. The blue textured dial has a black gradient effect on the edge, with white gold three-dimensional characters and "needle" hour and minute hands, covered with white fluorescent coating.