Vintage Calatrava model 3520 made in the 1960's featuring an 18k white gold adjustable band measuring 7 1/2 inches with roman numerals on a dark grey dial, 32 mm case.  Absolutely stunning colors and contrast. Only worn on special occasions and in excellent running condition.  No papers included but will include Patek Philippe case and folder.  Insurance is required with buyers shipping costs.  I will ship within the US for a flat fee of $75 which includes insurance.