A Different Kind of Lock

Picked up a locked Zero Halliburton Centurion Elite briefcase at an auction. There were contents, so I was dead set on getting in. It was the three-dial combo type. Tried brute-forcing it, but no luck. I suspect I would have had to go from closed and latched to open with every iteration, and that wasn’t about to happen. So I seduced my way into the case by another means, and removed the lock mechanism.  Hell, this case is considered the Rolex of briefcases, so I’d like to know the combo and be able to use it.