Vacheron Constantin Patrimony Moon Phase and Retrograde Date 4010U/000R-B329

About This Watch

The Vacheron Constantin Patrimony Moon Phase and Retrograde Date combines two of horology's most aesthetically pleasing complications in a refined dress watch format. The retrograde date sweeps across the upper arc of the blue dial from the 1st to the 30th or 31st before instantly snapping back to 1, while a precision moon phase display at 6 o'clock tracks the lunar cycle with an error of just one day in 122 years. A power reserve indicator tucked at 3 o'clock adds practical information without cluttering the dial. The caliber 2460 R31L is manufactured in-house and carries the Geneva Seal, ensuring impeccable finishing standards. The 42.5mm 18k rose gold case is sized to make the asymmetric retrograde display legible, while the rich blue dial creates a night-sky backdrop that perfectly suits the moon phase complication. The combination of retrograde date and moon phase is relatively rare in watchmaking, as it requires careful engineering to integrate both mechanisms. Vacheron Constantin's execution is both technically accomplished and aesthetically refined, resulting in a watch that is simultaneously a conversation piece and a daily companion.