As you say it doesn’t really matter now as the watch is having a full service plus there was a tiny pin prick chip on the crystal and that’s also being replaced. I have had it confined that only genuine Rolex parts will be used as well.
I can’t complain at all with the after sales support.
Far too charitable. To be brutally honest the dealer sold you a watch that had a fault and I find it hard to believe the seller didn't know this. You then get fobbed off with a totally implausible explanation (hairspring....) which is an insult. How you can still remain positive regarding the seller is beyond me, he’s sold you a dodgy watch then lied to you!
Sadly, many dealers try to make maximum profit on every watch, they’ll give a warranty and hope nothing goes wrong, they do the bare minimum to service and prepare a watch for sale. It’s unfair to tar then all with the same brush, there are exceptions, but as a generalisation this is correct.
I hope this turns out well, my advice is to get this watch checked thoroughly by a reputable third party when it’s returned.