The new product from GR Factory, after three years of research, features the Jaeger-LeCoultre Master Grand Complication perpetual calendar mechanical movement. This replica of the Jaeger-LeCoultre Master Grand Complication automatic mechanical watch adheres to the philosophy of disregarding t.mes
and cost, achieving the full functionality of the complex 868 movement using the imported 9015 movement, ensuring all features align with the official specifications.1. Perpetual Calendar Function: An invisible button located at the 8 o'clock position allows for year adjustment through the month, ensuring the perpetual calendar functions correctly. The year display ranges from 2024 to 2029, making it easier to replace the perpetual calendar functional module.2. Calendar, Week, and Month Functionality: . - The calendar dial displays at the 3 o'clock position and can be adjusted forward by turning the first notch of the pull-out crown and backward by reversing, although backward adjustments are not recommended as they may cause the date to skip. - The week dial displays at the 9 o'clock position and can be adjusted backward through the 24-hour t.mes
by pulling out the second notch of the crown. - The month dial displays at the 6 o'clock position and is adjustable through the invisible button at the 8 o'clock position, with a dedicated adjustment lever included for ease of use, allowing each function to be adjusted independently for convenience while wearing.3. Warning Window Function: Located above the pin shaft at the center of the dial, this fan-shaped window displays white for manual year adjustment and blue for restricted t.mes
periods. It is recommended to avoid adjusting the year during this restricted t.mes
to preserve the movement's lifespan. The 868/1 movement is a complex function movement, which is not a defect but a characteristic of the original.4. Moon Phase Function: Located at the 12 o'clock position, the moon phase window completes a full cycle over 30 days, achieving a genuine moon phase functionality. It can be adjusted backward by pulling out the first notch of the crown, effectively resolving the issue of the moon phase function not being adjustable independently.Additionally, an instruction card on how to adjust these features will be included for easier understanding by watch enthusiasts.While prioritizing functional restoration, the aesthetic restoration is equally important:.1. The materials used for the case and bezel are made from the same high-quality stainless steel as the original. Each component is meticulously crafted through CNC precision machining to restore the original appearance, maintaining the original 39mm size, with a thickness that closely matches the original dimensions, now achieving approximately 10mm while implementing all complex functions.2. The dial restoration is based on the original dimensions, with indices crafted from genuine molds to ensure depth and luster are accurately replicated. The size and placement of the indices are precisely QC'd, with the three functional dials designed to match the original, featuring a pronounced relief for the moon phase and perpetual calendar windows. Index points and the logo are also carefully reproduced, maintaining a slightly raised appearance, with all dial colors restored to match as closely as possible.3. The use of Syringe hands, which are the signature hands of the Jaeger-LeCoultre brand, features a half-sandblasted and half-polished finish. Both the hour and second hands employ a slight pressure-bending technique, while the blue steel hands are heat-treated for a purer blue hue.The efforts of GR Factory are dedicated to achieving the desired outcome, striving to recreate this complex Jaeger-LeCoultre Master Grand Complication perpetual calendar watch, allowing enthusiasts to appreciate and experience the charm of the t.mes
piece.
