The elements of the new mechanical CH 28-520 HU machine core are the automatic upper chain CH 28-520 PS timing machine core with column wheel control and vertical clutch, and the proven World Time module Cottier based on the concept developed by Genevan watchmaker Louis in the 1930s. Patek Philippe replica watches then refined the ingenious solution further and received two important patents for improvements in 1959 and 1999.
The clock clock clock movement and the world time mechanism have been strengthened through a lot of modifications. The shaft is moved, the bridge is thinner and the design is new, and the gap between the parts changes, making the CH 28-520 HU core legally called the new core. It embodies everything in Patek Philippe luxury replica watch making tradition, and at the same time has the technology and function innovation, making it the latest generation of machine core.
This also applies to its operations, in keeping with fake Patek Philippe watches commitment to user friendliness. The chronograph has a start/stop button at 2 o ‘clock and a reset button at 4 o ‘clock. It can also be used as an anti-excitation driver. When pressed while the chronograph is running, the scan pointer will fly back to zero and automatically start a new time measurement. Since the chronograph needle is powered by a vertical clutch, it can also be used as a stop-needle for permanent operation, without the risk of excessive wear, and without affecting the speed accuracy and power reserve of the watch.
The dial on the dial shows a seamless combination of two complex functions. The outermost display element in blue lists 24 city names, each representing the entire time zone. It has updated new cities for certain time zones – such as dubai replacing Riyadh or Brisbane rather than noumea – and has taken into account the fact that Moscow changed its local time from UTC + 4 to UTC + 3. The small gap between the city disk and the 24-hour ring can accommodate the second scale measured by the chronometer. It is a narrow white circular scale with a quarter of a second scale. This subdivision reflects the 4 hz (28,800 A/h) movement frequency, allowing the time to stop to an accuracy of one-eighth of A second.
The world time function is also very easy to use: the hour hand and minute hand indicate the time of the city and time zone, whose name is displayed at 12 o ‘clock. Using a city disk and a two-color 24-hour ring can be used to quickly and easily determine the time in 23 other areas. The ring can immediately tell the user whether it is day or night in the corresponding city and time zone. When traveling from one time zone to the next, press the calibrator button at 10 o ‘clock to push the city disk and the 24-hour ring counterclockwise in an hour’s walk, and clockwise in an hour. When the city name of the destination time zone is 12, the correction is complete. In the process, the world’s time mechanism and the hour hand are separated from the motion, so neither the magnitude of quality Patek Philippe replica watches the balance nor the steady progress of the minute hand will be affected. The hand of the chronograph also kept moving without any irregularity.