1990's Pierre Cardin Women's Diamond Watch

I am downsizing my watch collection (which turned out to be larger than I anticipated). This is a women's/ladies watch by Pierre Cardin. It has a gold color band, black face, gold hands and a diamond for the number 12. The band is adjustable by unlocking and sliding the loop end of the clasp up and down. In good condition, but could use a cleaning. I tested it with a new battery and it runs, but runs slow. I don't know if that is because of the watch or the crappy cheap battery I put in. For reference, it takes an SR621SW battery (which is also an SG1/364). It includes it's original box and hang tag. I originally paid $200 for this watch. SOLD AS IS.