Dear all, also based on the recent glamorous sales of the last unworn Monaco and the Carrera Dato, I have been thinking about how much extras such as box, papers etc. can add to a watch.
Of course what matters most is the watch itself and its core conditions; also our beloved MOaT for Heuers clearly states that quotations provided are for mint or near-mint watches but w/o box or papers. How much the latter ones add was wisely withheld, as it's quite personal.

On the other hand, a 'nice package' indeed adds a lot to the main object, and we have plenty of examples. It's especially so when it's coming in terms of items that are rare by themselves such as, for Heuers, the fabled red boxes or original instructions. By the way, additional items of most Heuer seem to be rather hard to find, regardless of the period and perhaps items of the so-called transition period (from Heuer to TH)are even rarer than '70's stuff...

So guys should you provide a good 'guesstimate', how much in terms of percentage do you think a good set of box and papers adds to the original value of the watch? What's the opinion of the experts out there? If we find there's a meaningful consensus then maybe this information might be embedded for future reference...

Points should be heeded IMO are:
1. How old is the watch?
2. Are the items perfectly matching also as for period (e.g. an original box could be of a different period)
3. How scarce are overall the extras? If they're quite common they don't add up so much.

If we think of Stewart's Monaco all the above are fulfilled so it's a big plus, in other cases the value added can be far less.

Cheers.

Fabrizio