Orange County
No box, no papers, still sellable.
Missing box and papers is the most common worry we hear, and it is usually a smaller factor than sellers expect.
What it actually costs you
On most modern references, a full set commands a premium of roughly 5–15% over a watch-only example in the same condition. It is real, but it is not the difference between sellable and unsellable. We buy watch-only examples constantly.
When it matters more
On sought-after and vintage references, provenance carries more weight, and an original punched warranty card or a matching box can move the number considerably. Reference-specific — worth asking about yours.
What matters more than packaging
Originality of the watch itself. An unpolished case, correct hands and dial, an original bezel insert and a movement that has not been swapped are all worth more than a cardboard box.
What not to do
Do not buy a replacement box or a generic warranty card to make up a set. It is obvious to anyone who authenticates watches, and it turns a straightforward transaction into a suspicious one.