Patek Philippe introduced in 2013, a new reference in their collection, which might easily become a future classic. The new ref. 5200G (the G refers to its white gold case) is part of the Gondolo collection and features an 8-Days manually wound movement with a day and date indicator. Albeit ref. 5200G is an entirely new model, it shares some similarities with two other Gondolo models, both the ref.5124 and the legendary ref. 5100 10-Day Power Reserve Millennium Edition, nicknamed “Manta Ray.”
Ref. 5200’s caliber 28-20 REC 8J PS IRM C J (C stands for “Calendar,” meaning the date indication, and J stands for “Joure,” or in English, the Day indication) actually features just two bridges: the large bridge covering the entire upper half of the movement, and a second bridge, which has been milled to look like three bridges. This way the movement shows a visual resemblance to its ancestor, while the single bridge is more rigid and easier to service.
The new caliber 28-20 REC 8J PS IRM C J features the Spiromax balance spring and Pulsomax escapement and it is Patek’s first 4-hertz movement with these silicon-based materials. The Pulsomax escapement with a Silinvar lever and escape wheel requires no lubrication and yet is practically friction-free, which saves energy each time the lever contacts the escape wheel. And that is something that happens 5.53 million times during the eight days of power reserve. Additionally, the extremely hard, totally antimagnetic and corrosion-resistant Silinvar material is two-thirds lighter than steel, which further optimizes the energy balance. Depending on the angle, the balance spring, lever, and escape wheel can be recognized by their purple-to-bluish hue in the lower right corner of the rectangular movement, which beautifully fits the rectangular case.
The calendar mechanism is a so-called instantaneous calendar, meaning that both the day and the date change within three milliseconds at midnight. The calendar mechanism costs roughly two days of the initial 10 days power reserve. And even with the addition of the instantaneous calendar mechanism, the beautifully finished movement measures just 5.05 mm in height, just like the movement of the Ref. 5100.
An 8-Day power reserve indicator is placed at the upper half of the dial and the instantaneous day and date indications are positioned at the lower half of the dial. The small seconds hand is integrated into the date circle, which also includes an aperture for the day of the week.
Content Credits Monochrome