New perpetual calendar with innovative patented single-line display
Patek Philippe is known as one of the best calendar watch manufacturers. Whether it’s a separate calendar calendar or other complications, whether it’s an annual calendar (one of its inventions) or a perpetual calendar, the brand is clearly within its comfort zone. This year, as part of the “Watches and Miracles 2021” series, the brand launched a new ultra-clean perpetual calendar watch that displays the date, date and month in a row in an elongated hole below 12 o’clock. To this end, Patek Philippe also released a new movement for its embedded perpetual calendar 5236P.
Patek Philippe has a variety of perpetual calendar watches with a classic layout and 3 sub-dials-with automatic winding ultra-thin movement 240 Q movement, such as Ref. 5327-or retrograde date display, and even continuous windows on the arch between 10 o’clock and 2 o’clock on the dial… In 2021, the brand added a new look to its perpetual calendar watch series, where all the key instructions are in It is displayed in uninterrupted single-line text, so that the calendar function can be read highly intuitively. A total of 4 non-overlapping discs and a brand new movement with 3 patents are required.
The “panoramic” embedded display of Perpetual Calendar 5236P is rarely seen in modern watchmaking. At Patek Philippe, this is not completely unprecedented, because the brand has already produced pocket watches with an embedded calendar display for the American market. However, this is the first of Patek Philippe watches. The main advantage of this display is that in addition to bringing a very clean and tidy dial, it can also visually view the calendar indications, and it feels natural for every day of the week (at least in most parts of the world), on two discs The date and month – such as SAT (Saturday) – 18 – MAR (ch) here.
To ensure this display effect, Patek Philippe watchmakers must design a system with two date discs-one for ten date discs and the other for ten date discs. Therefore, the calendar display consists of four disks, one disk for the day, two disks for the date, one disk for the month, and all four disks are completely embedded in the same plane. The date displayed on a single disc is too small to be legible.
The most innovative aspect of the embedded perpetual calendar 5236P is the display with four rotating disks, which ensures the best legibility and lowest energy consumption. As the brand explains, “Compared with the traditional perpetual calendar display, this mechanism alone requires 118 additional parts, including multiple bridges and wheels with jewel bearings, which can reduce energy consumption, especially the two date discs. In order to keep all indications on a plane without any overlap, Patek Philippe engineers have developed a display system consisting of two coplanar double ball bearings and has applied for a patent. Reliable date display The perfect synchronization with the two date discs has been optimized through the “anti-double jump” function of the unit disc to prevent disc jitters when bumps or date correction are performed (application of the second patent)”
In order to create this new In-line Perpetual Calendar 5236P, the brand developed a new movement based on the 31-260 REG QA movement, which was originally developed in Ref. Launched in 2011. 5235 calendar adjuster. While retaining the diameter and height of the basic movement (31.74 x 2.60 mm, hence the name 31-260), the movement has been redesigned to install a small second at 6 o’clock, and of course the calendar mechanism and the perpetual calendar Its online display. For example, the torque of the spring barrel has been increased by 20%, and the mass of the platinum micro-rotor is larger than the 22k gold commonly used for copy Patek Philippe micro-rotors, thereby increasing the spring force. Similarly, one of the special features of the movement can be found in the references. 5235 is its unusual 3.2Hz frequency. In order to improve the rate stability, it is increased to 4Hz here.
From the bottom cover, the movement is more elegant, curved and open than other Patek Philippe movements. In particular, it has a finger bridge for trains, which feels good to the touch. As expected, the finishing is elegant and refined. The movement has classic elements such as Gyromax balance wheel and Spiromax balance spring.
Speaking of the watch itself, the Patek Philippe In-line Perpetual Calendar 5236P is an elegant and modern design placed in a 41.3 mm 950 platinum case with a height of 11.07 mm. The lugs are slender, and the lugs are matched with the beveled bezel to create a clean and discreet modern style. The case is completely polished, with a small diamond engraved on the side of the case at 6 o’clock, which is a classic feature of most platinum Patek Philippe. As for the dial, the in-line perpetual calendar has a neat layout, most of the indicators are located at 6 o’clock, and the second and moon phase sub-dials have year and day/night indicators on both sides. best replica watch site 2021
The dial of this perpetual calendar 5236P is executed in the now classic dark blue. The surface has a straight-brushed surface. The black gradient effect makes the outer periphery of the dial darker than the middle. The fine and faceted hour markers and platinum baton enable the time to be read. The peripheral railway minute track brings a touch of technical appearance. The navy blue alligator leather strap and platinum folding clasp complete the appearance of this new QP.
Technical Specifications-Patek Philippe In-line Permanent Calendar 5236P
Case: diameter 41.3 mm x height 11.07 mm-950 platinum, polished-sapphire crystal case front and back cover-water resistance 30m
Dial: brass, blue-black gradient, vertical satin coating, gold-plated hour markers
Movement: internal movement 31-260 PS QL- Patek Philippe Seal- automatic movement with micro-rotor- 34mm x 5.8mm-503 parts-55 jewels-28,800 half pendulums per hour-power reserve 38-48 hours- Hours, minutes, small seconds, embedded perpetual calendar with date, date and month, Le year period and day/night indicator, moon phase
Strap: Hand-stitched alligator leather strap, large scale, shiny navy blue, folding clasp, 950 platinum