Hi all,  I came back from holidays on Saturday early morning and put in a 6h watchmaking shift until 3.30am the following night. I really wanted to finish off that Jaeger-LeCoultre Master Geographic I had not finished before the holidays (because the mainspring hadn't arrived in time).  Anyway, so I finished it and all seemed great.  But now, I realised that it's rebanking/"knocking". 100% sure. Classical symptoms and I can even observe it visually (with the phone super slow-motio