The new product from GR Factory has undergone three years of research on the Jaeger-LeCoultre Master full-function perpetual calendar mechanical movement, replicating the Jaeger-LeCoultre Master Perpetual Calendar Automatic Mechanical Watch. Adhering to the philosophy of not counting time and cost, it has achieved the restoration of all functions of the complex 868 movement using the imported 9015 movement, fully consistent with the official model!.1. Perpetual Calendar Function: An invisible button located at the 8 o'clock position allows for the adjustment of the annual calendar by month. The perpetual calendar year operates normally, facilitating the functioning of the annual calendar module. The year display ranges from 2024 to 2029, making it easier to replace the perpetual calendar function module.2. Calendar Dial, Weekday Dial, and Month Dial Functions:. - The calendar dial at the 3 o'clock position displays the date and can be adjusted forward by turning the first gear pulled out from the bar; backward adjustment is not recommended as it may cause the moon phase dial to jump. - The weekday dial at the 9 o'clock position can be adjusted by pulling out the second gear to reverse through a 24-hour time adjustment. - The month dial at the 6 o'clock position can be adjusted via the invisible button at the 8 o'clock position, with a dedicated lever included for easy operation. This allows for individual adjustments of all three functions, making it convenient during wear.3. Warning Window Function: Located above the central axis of the dial, a fan-shaped window indicates when the year can be manually adjusted (white display) or indicates a restricted time period (blue display). It is advisable not to adjust the year during the restricted time to avoid damaging the movement's lifespan. Therefore, the 868/1 movement is a complex function movement, not a defect of the movement itself, and this is true for the original as well.4. Moon Phase Dial Function: The moon phase window at the 12 o'clock position completes a full cycle in 30 days, achieving true functionality and genuine lunar appearance. It can be adjusted by reversing through the first gear pulled out from the bar, effectively solving the issue of the moon phase function not being adjustable individually.Additionally, a user adjustment instruction card will be included to facilitate a clearer understanding for watch enthusiasts.While paying attention to functional restoration, the visual restoration is equally important:.1. The materials used for the case and bezel are identical to the originals, crafted from stainless steel with each component produced through precise CNC machining to restore the original appearance, maintaining the original 39mm size. The thickness is controlled to be as close to the original as possible, currently achieving around 10mm.2. The dial restoration follows the original dimensions, with all scale markings made from genuine molds, providing an unparalleled three-dimensional effect and gloss. The sizes and positions are subject to full QC, with the three function dials designed in accordance with the original being recessed. The moon phase window and perpetual calendar window have a more pronounced three-dimensional feel, with scale points and logos matching the original, providing a slightly raised visual effect. All dial colors are restored to be as consistent as possible.3. Featuring the iconic baton hands, which are half sandblasted and half polished, both the hour and second hands are crafted with a micro-press bending technique. The blue steel hands are treated to achieve a purer blue color.The entire effort of GR Factory is a necessary journey to achieve results, striving to restore this Jaeger-LeCoultre Master complex perpetual calendar watch as closely as possible, allowing watch enthusiasts to not only enjoy it but also deeply appreciate its charm.
