Type the watch once.
Invoice and report off that same record. CRM, sourcing, matches, deals, inventory, and reports share one set of records. Margin on the deal. Month end from what you sold.
CRM and intake
Buyer requests and seller submissions in one queue, so the next touch is obvious.

Sourcing
Find-the-watch work ordered by stage, so due today is never buried.

Market
Type a reference and see every listing and WTB from the groups you already sit in, next to stock you hold.

Deals
The money screen. Basis, sold price, gross profit, payments, and the invoice on one close.

Inventory
What you hold, what it cost, and whether it's free to sell.

People
Buyers, sellers, and trade partners with the history on the name.

Reports
The numbers a lender could actually read. Company revenue and gross profit from deals you already closed.

Your storefront
Your website and your books, on the same records.

Matches, selling, QuickBooks, and the rest of the system.
Intake, invoice, and report share one watch.
What you enter at intake is what you invoice and what shows in the month. Gross profit sits on the deal. Sync to QuickBooks when you are ready.