Easy question: what does it mean when a watch is "signed"

I see references to watches as being "double signed" or "triple signed".   What does that mean?  

 

 

depends what is "signed" whan buying a vintage watch you would prefer to have
01/05/2016 - 16:28

the case, movement and dial "signed" meaniing you will have the brand name on them. I

Re: depends what is "signed" whan buying a vintage watch you would prefer to have
01/05/2016 - 16:55

Thank you.  Perfectly clear.