GR Factory New Product: After three years of research, we have replicated the Jaeger-LeCoultre Master Ultra Thin Perpetual Calendar mechanical movement. Adhering to the concept of not counting t.mes
and cost, we have achieved all the functions of the complex 868 movement using the imported 9015 movement, ensuring that all functions are consistent with the official model!.1. Perpetual Calendar Function: The hidden button at the 8 o'clock position allows for month adjustment, facilitating the smooth operation of the perpetual calendar. The year display ranges from 2024 to 2029, making it easier to replace the perpetual calendar function module.2. Calendar, Weekday, and Month Discs: . - The calendar disc displays at the 3 o'clock position and can be adjusted forward by turning the first notch of the crown, while backward adjustment is not recommended as it may disrupt the month display. - The weekday disc is located at the 9 o'clock position and can be adjusted backward via the second notch of the crown through a 24-hour cycle. - The month disc is at the 6 o'clock position and can be adjusted using the hidden button at the 8 o'clock position. A dedicated adjustment lever is included for convenience. Each of these functions can be adjusted independently for ease of use while wearing.3. Warning Window Function: Positioned above the central pivot of the dial, this fan-shaped window indicates manual year adjustment when displayed in white. When displayed in blue, it signifies a restricted t.mes
period, during which year adjustment should be avoided to preserve the movement's lifespan. This feature of the 868/1 movement is a complex function, not a defect, and this is true for the original as well.4. Moon Phase Function: Located at the 12 o'clock position, the moon phase window completes a full cycle in 30 days, accurately displaying the true moon phase. The adjustment can be made by turning the first notch of the crown backward, effectively solving the issue of independent adjustment for the moon phase function.Along with the above adjustment.mes
thods, a user instruction card will be included for easier understanding. While emphasizing functional restoration, the aesthetic restoration is equally important:.1. Case Material: The materials used for the case and bezel are consistent with the original, crafted from stainless steel. Each component is meticulously produced using CNC technology to restore the original appearance, maintaining the original 39mm size with thickness closely resembling the original dimensions. The overall thickness is controlled to approximately 10mm while achieving all complex functions.2. Dial Restoration: The dial is restored to the original dimensions, with markers made from genuine molds. The three-dimensional feel and luster are replicated to the highest degree, with all dimensions and marker placements undergoing strict quality control. The three function discs are also recessed, with the moon phase and perpetual calendar windows having a pronounced three-dimensional effect, and the scale points and logo closely matching the original, with a slightly raised appearance to enhance visual depth. All dial colors are restored to match as closely as possible.3. Use of Dauphine Hands: The Dauphine hands, a hallmark of the Jaeger-LeCoultre brand, feature a half-sandblasted, half-polished finish, with the hour and second hands crafted using a micro-pressing technique. The blue steel hands are heat-treated for a purer blue hue.The efforts of GR Factory are a necessary journey toward achieving results, striving to faithfully replicate this Jaeger-LeCoultre Master Ultra Thin Perpetual Calendar watch, allowing watch enthusiasts to appreciate and experience the charm of this t.mes
piece firsthand.
