Task Force Combination Lock Cracking help?

I have a combination lock made by Task Master. It looks exactly like the master combination lock, just made by Task Force. The problem is that I don't know the combination. Here's the catch. I some how miraculously opened it on a guess. I have no idea what the numbers are but I can see inside the hole to see the lock internals. My question is: Is there any way I can find the correct combination of the lock with the lock already open?