The 275-part Manufacture Vacheron Constantin Caliber 2460 R31L with its 40-hour power reserve drives the hours and minutes hands, the precision moon-phase display as well as the retrograde date. With this unprecedented movement, the Maison has succeeded in offering an easily adjustable mechanism. Its crown offers simple and smooth access to all three functions of the timepiece. In its first position, it serves to wind the watch. Once pulled out to the second notch, it can be turned clockwise to set the date or counter-clockwise to adjust the moon phase, while the third and last position controls time-setting. A transparent sapphire crystal reveals the 2460 R31L movement and its 22K gold oscillating weight, adorned with Vacheron Constantin’s signature Maltese cross motif. The hand-crafted finishing of the caliber reflects absolute mastery of the watchmaking art and traditional skills.