The GR Factory's new product is a replica of the Jaeger-LeCoultre Master Ultra Thin Perpetual Calendar watch, featuring a fully functional mechanical movement that has undergone three years of research. Adhering to the philosophy of not sparing t.mes
or cost, we have achieved a complete replication of the 868 movement's complex functions using the imported 9015 movement, ensuring all functions are consistent with the official model!.1. Perpetual Calendar Function: An invisible button located at the 8 o'clock position allows for month adjustments to the annual calendar. The perpetual calendar runs normally, facilitating the operation of the annual calendar module. The year display ranges from 2024 to 2029, making it easier to swap the annual calendar module.2. Date, Day, and Month Discs: . - The date disc at the 3 o'clock position can be adjusted forward by pulling the first notch of the crown and turning it clockwise, and backward by turning it counterclockwise. *It is not recommended to adjust it backward as this may disrupt the month display. - The day disc at the 9 o'clock position can be adjusted by pulling the crown to the second notch and turning it counterclockwise to adjust through the 24-hour t.mes
format. - The month disc at the 6 o'clock position can be adjusted using the invisible button at the 8 o'clock position, along with a dedicated adjustment lever provided. This allows for the independent adjustment of all three functions, making it easier to operate while wearing the watch.3. Warning Window Function: Positioned above the central hand axis, this fan-shaped window displays white when the year can be manually adjusted, and blue during restricted t.mes
periods. It is best not to adjust the year during this t.mes
to avoid damaging the movement's lifespan. The 868/1 movement is a complex function movement, not a defect, and this is true for the original as well.4. Moonphase Function: Located at the 12 o'clock position, the moonphase window completes a full cycle every 30 days, achieving true moonphase functionality. It can be adjusted by pulling the crown to the first notch and turning counterclockwise, effectively resolving the issue of independently adjusting the moonphase function.In addition, a user adjustment instruction card will be provided to help watch enthusiasts understand these adjustment.mes
thods more clearly.While emphasizing functional restoration, the aesthetic restoration is equally important.1. The case materials are made from the same high-quality stainless steel as the original. Each component is precisely crafted through CNC machining to replicate the original appearance, maintaining the original 39mm size and achieving a thickness as close to the original as possible, currently around 10mm, while realizing all complex functions.2. The dial restoration is based on the original dimensions, with the markers being true prototypes, achieving an unparalleled three-dimensional effect and gloss. The size and positioning of the markers are subject to strict QC standards, with the three functional discs recessed, and the moonphase and perpetual calendar windows displaying more pronounced three-dimensionality. The markers and logos closely resemble the original, with a slightly raised appearance, and all dial colors are matched as closely as possible to the original.3. The use of sword hands, a signature of the Jaeger-LeCoultre brand, features half sandblasted and half polished designs, with the hour and second hands employing a micro-press bending technique. The blue hands are heat-treated for a purer blue tone.The efforts of the GR Factory are part of the essential journey toward achieving results, striving to replicate this Jaeger-LeCoultre Master Ultra Thin Perpetual Calendar watch, allowing watch enthusiasts to appreciate and personally experience the charm of this t.mes
piece.
