I get quite a few dealer purchased watches brought to me with varying claims. Often there is a claim of the watch being "fully serviced by our watchmaker" just like this most recent watch had. Further they claimed balance amplitude of 270 degrees, and a daily rate of +6 seconds.
Incoming inspection revealed that the balance amplitude did not exceed the high 240's fully wound, and it was averaging a slight loss.
The customer had just received it literally a couple of days before I took these photos, yet the case was dirty:
When I opened the case it was clear that the case back seal was very old - not something I would expect to see in a freshly serviced watch:
Of course the watch failed the pressure testing, and when I removed the seal, it basically turned to powder:
In my initial inspection, I could see that the jewels were dry:
The escapement was dry and dirty:
The easiest thing to remove was this bridge for the sweep seconds:
Looking at the underside of the jewel, the oil is dried and only heavy residue is left behind:
Based on these findings, I was asked to service the watch, and during the disassembly I checked more jewels - they were all dry:
The balance jewels were dry:
The movement was fully serviced by me, performing well within Omega specs, and in the end passed the pressure testing. I realize that this thread is more about redials and originality, but that is not the only area where dealers are frequently dishonest. In this case it's pretty clear that the claim the watch was serviced is a flat out lie - this watch hadn't been serviced in decades. This isn't some small unknown dealer either - this bi-valve dealer is often spoken of here and often in good terms. On this one they clearly fell short, and the customer had to spend extra money to get what they paid for - a fully serviced watch.
Far from the only example of this behaviour by dealers, but just the most recent that has come across my bench.