Produced by SJ .After three years of research, J Factory presents a fully functional perpetual calendar mechanical movement, the Jaeger-LeCoultre JL Master Perpetual Calendar YS automatic mechanical watch. Adhering to the philosophy of disregarding time and cost, we have achieved the restoration of the complex functions of the imported movement in a manner consistent with the 868/1 movement.1. Perpetual Calendar Function: The hidden button at the 8 o'clock position allows for month adjustments to the annual calendar. The perpetual calendar operates normally, facilitating the operation of the annual calendar module. The year display ranges from 2023 to 2028, making it easier to replace the perpetual calendar module.2. Date, Day, and Month Discs: . - The date disc shows at the 3 o'clock position and can be adjusted forward by turning the first position of the pull-out crown and backward by turning it in the opposite direction. *Backward adjustment is not recommended as it may disrupt the month display. - The day disc shows at the 9 o'clock position, adjustable by turning the second position of the pull-out crown in reverse through the 24-hour time. - The month disc shows at the 6 o'clock position and can be adjusted using the hidden button at the 8 o'clock position, accompanied by a specialized adjustment tool for ease of use. This allows for independent adjustment of all three functions, making operation simple while wearing.3. Warning Window Function: Located above the central pin axis on the dial, this fan-shaped window displays white for manual year adjustment, and blue indicates a restricted time period. It is advisable not to adjust the year in this zone to preserve the movement's lifespan. This 868/1 movement is a complex function movement, and this characteristic is consistent with the original.4. Moon Phase Disc Function: Located at the 12 o'clock position, the moon phase window completes a cycle every 30 days, achieving true functionality and accurate moon phase display. It can be adjusted in reverse by pulling out the first position of the crown, effectively addressing the issue of independent adjustment for the moon phase function.Additionally, a user manual for adjusting these functions will be included to help watch enthusiasts understand the operations more clearly.While focusing on the restoration of functions, the appearance is also a top priority.1. The materials used for the case and bezel are consistent with the original stainless steel. Each component is meticulously crafted using CNC precision to replicate the original appearance, maintaining the original 39mm size and controlling the overall thickness to approximately 10mm to closely match the original dimensions despite the complexity of the functions.2. The dial is restored according to original dimensions, with all markings accurately molded. The three-dimensional effect and gloss are faithfully reproduced, and the sizes and positions of the markings are quality checked. The three functional discs are made to mirror the original design with recessed surfaces, and the moon phase and perpetual calendar windows exhibit pronounced three-dimensional depth. The scale points and logo adhere closely to the original, providing a slightly raised appearance, and all dial colors are matched as closely as possible.3. The watch features sword hands, a signature of the Jaeger-LeCoultre brand, combining sandblasted and polished finishes. Both the hour and second hands are slightly curved, with the blue steel hand being heat-treated for a more vivid color.Every effort is made to faithfully reproduce this Jaeger-LeCoultre Master Complex Perpetual Calendar watch, allowing enthusiasts to appreciate and experience the charm of the timepiece. The S1 is highly recommended as a refined multifunctional mechanical watch for men.
