What does “Blank Papers” mean?

Blank papers are a warranty card or certificate with no buyer's name, no dealer details and no stamp: the document exists, but nothing has been filled in. It is similar to open papers, but 'blank' usually stresses that the card shows no trace of a sale at all.

Blank papers can raise provenance questions. A genuine blank card might simply mean the watch came through the trade, but it can also suggest that the papers and the watch weren't sold together, or that the card itself isn't authentic. Without a dealer stamp and sale date, the start of the warranty may also be unclear. Before buying, check that the serial on the card matches the watch, examine the card for signs that it is genuine, and ask where the watch and card came from. Many buyers treat blank papers as worth less than properly completed ones.

Example: 'Card is blank, no stamp or date. Serial matches. Priced accordingly.'