I bought my serviced Marine Chronometer here, but I'm afraid that I don't know what premium the stardust dial might add.
https://forum.tz-uk.com/showthread.p...=1#post5125517
I'd absolutely love one, I see that you are not into distance selling but I do have a packet of six 'M&S Collection' mince pies with a good best before date that I could offer in trade.