Factory J spent three years researching a fully functional perpetual calendar me

Factory J spent three years researching a fully functional perpetual calendar mechanical movement to create a replica of the Jaeger-LeCoultre Master Perpetual Calendar Automatic Mechanical Watch. With unwavering commitment to time and cost, they achieved the feat of recreating the functions of the 8681 complication using an imported mechanical movement. First, the perpetual calendar function allows the month to be adjusted via a hidden push-button at 8 o'clock. The perpetual calendar year operates normally, facilitating the operation of the calendar module. The year display, 2028, facilitates replacement of the perpetual calendar module. Second, the calendar and month dials: 1. The calendar dial is at 3 o'clock and can be adjusted forwards by pulling the handle to the first position, and backwards by rotating the handle to the second position . *Reverse rotation is not recommended, as this will cause the moon disc to jump. 2. The day of the week dial is at 9 o'clock and can be adjusted reversely through the 24-hour time by pulling the handle to the second position. 3. The month dial is at 6 o'clock and can be adjusted via a hidden push-button at 8 o'clock. A dedicated adjustment lever is included. This allows the three functions to be individually adjusted for easy operation while wearing the watch. Third: A warning window function. A fan-shaped window located above the needle axis in the center of the dial allows manual adjustment of the year when displayed white. A blue display indicates a restricted period. It is best not to adjust the year in this area to avoid damaging the lifespan of the movement. Therefore, the 8681 caliber is a complex movement and is not a defect. This is also the case with the original. Fourth: A moon phase function. The moon phase window at 12 o'clock completes a full rotation every 30 days, achieving a true moon image. Adjustment can be reversed by pulling the lever to the first position, effectively resolving the issue of the moon image function being unable to be adjusted independently. An instruction card is included with the adjustment instructions for these functions for easier understanding. While prioritizing functional restoration, aesthetic restoration is also paramount. First: The caseback is made of the same stainless steel as the original. Each component is individually precision-machined using CNC technology to restore the original appearance. While maintaining the original 39mm size, the thickness is as close to the original as possible. While fully implementing the complex functions, the overall thickness has been minimized to approximately 10mm. Second, the dial is perfectly restored, based on the original dimensions. The indices are all authentic, molded from scratch, ensuring a truly authentic three-dimensional effect and gloss. The dimensions and indices are perfectly positioned. The three function dials are recessed, mirroring the originals. The moon and perpetual calendar windows are accentuated with a more pronounced three-dimensional convexity and concavity. The indices and logo are also slightly convex, true to the originals. All dial colors have been faithfully restored to their original form. Third, the dauphine hands, a signature Jaeger-LeCoultre brand symbol, are half sandblasted and half polished. The hour and second hands are slightly bent, and the steel blue hands are burnt steel blue for a purer blue. Every effort goes a long way to achieving the ultimate result. This Jaeger-LeCoultre Master Complication Perpetual Calendar watch has been meticulously restored to its original form, allowing watch lovers to appreciate and experience its charm firsthand.