4 Answers

He may have suffered a stroke. Or the lip could be infected. Have a vet check him. 

Colleen

Could be infected teeth even.

Rich Reichbach who runs Time Titans an outfit that sources and sells vintage and link modern watches has collected a number of Fricker link watches over the years. He surmises that "private label manufacturing link basically totally shifted to Asia" which contributed to the closing of Fricker. Another theory is that Walter Fricker had seen the company grow for nearly 30 years and the business had simply run its course. And when I reached out directly to get an answer I got no reply.

It could be a sign of facial nerve paralysis, stroke, or some other neurological disorder. I prefer to read up about different dog diseases and symptoms on blogs like PetCareRx and PetMD. If you notice a sudden droop or sagging in your dog's lips, make sure you visit the vet ASAP.