This is a lovely Cartier Mantel Tank Vermeil Gold 925 Ladies Watch that has hardly been worn.  It still has its original Cartier leather strap and comes with a full deployment/folding clasp in gold.
The perfect dial is flawless and in champagne is the best colour combination to go with a gold watch.  The blue sapphire cabochon is a trademark of a Cartier crown and is in perfect condition too. 
This elegant watch is perfect for both formal and informal occasions and is sure to keep holding its value like most Cartier models do.