AI Appraisal Estimate

This is a vintage wristwatch featuring a round silver-toned case, likely sterling silver with a gold-plated (vermeil) finish, though the plating shows significant wear. The dial is white with black Roman numeral hour markers and a distinct moon phase complication at the 12 o'clock position, displaying a blue sky with gold-tone stars. It includes a small date window at the 6 o'clock position. The dial is marked with 'Must de Cartier' and 'SWISS MADE' at the bottom. The hands are a dark, possibly blued steel or black finish. The watch is attached to a heavily used black leather strap with visible creasing and cracking. Regarding condition, there is extensive tarnish and loss of the gold plating on the bezel and lugs, revealing the darker base metal beneath. The crystal appears to have several fine surface scratches. The crown is a small, fluted gold-toned piece. This style is consistent with late 20th-century production, likely from the 1980s or 1990s. The overall craftsmanship is characteristic of the 'Must de' line, intended as a more accessible luxury series by Cartier, utilizing quartz movements in vermeil cases.

I have examined the images of this Must de Cartier Vendôme Moonphase. The watch features the iconic vermeil case (925 sterling silver with 20-micron gold plating) characteristic of the 1980s-90s 'Must' series. The moonphase complication and date at 6 o'clock indicate a quartz movement, likely the Cartier 181 or 184 caliber. The condition is assessed as 'Fair' to 'Poor.' Significant oxidation and plating loss are visible on the lugs and bezel, which is common for this era but heavily impacts value. The dial appears original with minor age-related patina, and the crystal shows surface abrasions. The 'Must de' line was a high-volume entry point into luxury, making this model relatively common on the secondary market. Current demand favors pristine examples; however, this specimen's heavy brassing and worn aftermarket strap necessitate a lower valuation to account for professional re-plating and servicing costs. While the typography and proportions align with authentic period examples, I cannot definitively confirm authenticity from images alone. A physical inspection of the movement for Cartier hallmarks, verification of the serial number on the case back, and testing of the silver purity would be required for full authentication. Market comparables for well-maintained versions range from $900 to $1,300, but significant cosmetic depreciation applies here.