Porsche Design Ultra sport Ref 3330?

Hey, I have this IWC Porsche Design Watch. I was wondering if anyone couldgive more information about it and where the market currently is on these? From my understanding it's a 1984 (1984 due to the dial version) Ultra Sport/Ultra sportivo Ref 3330 with a cal 2210 movement. All of the references I see online have what seems like a new dial that includes the IWC logo. Also, the strap is unfortunately broken so I will need to replace that.