What "upgrade" is Breitling USA doing?

[Isochronous]

I sent my Breitling in for service back in March. It was supposed to be returned to me on May 16 according to their scheduled. When I didn't hear from them I sent an email asking how my servicing was coming along. They did get back to be quickly and said; "Starting tomorrow we will be conducting a system upgrade until June 7th. During that time, we will not be shipping any product out."

I got that on the 17th so starting today they aren't shipping any serviced watches for three weeks. Does anyone know what they are doing in the Connecticut facility? I miss my watch.