Thanks for the responses fellas.
After a couple of days I hope I've got to the bottom of it and I know Mary is a reliable dealer, my concern was it growing legs and walking off, never to be seem again!
I managed to speak to a few people at parcel force, most didn't have a clue but I spoke to a depot manger who's explained the process and the problem so I can now relax and wait for the back log to clear.
The issue was, online tracking with ems stops once it clears customs in china and doesn't pick up again until it's recieved by the royal mail in th uk.
The watch has made it through but is now, hopefully, sat in a back log waiting to be processed at either heathens or gatwick. Once it's processed the tracking number changes and it shows as recieved in th uk.
Thanks for the responses fellas, have a merry Christmas, I'll post some photoswhen it arrives!
IRC