Thanks Grapeshot.
The watch has been in Chinese Customs for over a month now.
They will not release it it until the tax and duty is paid.
The value on the package was only $15 as requested by Puretime.
Puretime refuse to contact the customs office because they say the watch will be seized.
I have offered to pay the tax and duty but customs will only release the package to the addressee.

The courier who delivered the watch says I might get it back in 6 months but there will be tax and duty to be paid.

If I do get the watch back, can you recommend a repairer in the UK who will work on a replica?

It went wrong after two weeks and I find Puretime's Customer Service A LOT to be desired.