The watch is small and can fit in a flat rate priority box $5.35 to anywhere. It can also be spent parcel post which is probably cheaper but will take up to 2 weeks!
Just wanted to let you know , if you put in a small bubbled envelope and send it first class with conformation # , it's $ 2..80 and only takes 3-4 days to get anywhere in the us. This is what I always use and works great on small Items. I have sent a few watches in the past and they arrive with no problems. Have a good day......: )