The fastest way to understand what this tool does is to run one watch through it:
1. Find any watch for sale — Facebook Marketplace, eBay, a pawn shop case.
2. Start a free trial and save it as a lead: name, asking price, where you found it.
3. Open Check Comps and pull the sold prices for that reference.
4. Run Max Buy. The engine checks the deal against every guardrail — sold-comp minimum, margin floor, your bankroll position — and hands you a number: the most you can pay and still make money.
That number changes how you negotiate. You stop guessing, you stop overpaying because a watch is pretty, and you can walk away from bad math without a second thought.
One deal through the desk teaches you more than an hour of reading. Start free and bring a real listing.