A watch can be stolen with its box and documents, or those items can be separated from it later. Their presence may help identify a piece, but it does not prove the seller owns it or that no theft report exists.
Check whether the documents belong to this watch
Compare the serial on the watch with the number on the warranty card, invoice, and service records. Confirm that the papers describe the same model and that dates and seller details make sense. Ask where the documents came from if the history is unclear.
Run an individual status check
Search using the serial on the physical watch, not the serial typed by the seller alone. Keep the dated result with the documents. A clear result means no matching report was found in the records searched at that time; it does not authenticate the watch or establish legal title.
Treat missing papers the same way
A watch without a box or papers is not automatically stolen. It does mean you have fewer records to connect the piece to its past. Ask for service invoices, an original sale receipt, or another credible record that identifies the watch.
Whether the set is complete or bare, inspect the actual watch, verify its serial, and get the sale terms in writing. A polished box cannot answer the ownership question.
Check the Watch, Not the Box
Use the serial on the watch and compare it with any paperwork before purchase.