If you do decide to send in your watch for servicing, I suggest using a traceable method like USPS registered mail for secure delivery.
Use a sturdy cardboard box, plenty of bubble wrap and insure the package with a declared value equal to the replacement cost of the watch.
Please do NOT send in original gift box.
Address package to:
David Desilets
C/O Coffrins'
1829 S Osprey Avenue
Sarasota, FL 34239

Do you need shipping supplies?