BUT isn't it worth it?
I think I know why you want this TT 1931 to be personalized, and I have to agree with your reasons.
It is noe fo the best reasons in the word, then it is worth some " time sacrifices ", don't you think?
If I got you well, you don't have the watch, already. Ask Seth if it is not possible to do it immediately, before the delivery of your watch.
It will be a bit longer, but it may also be the best solution.
Best, Phil.
Nicolas.