Although we have yet to find an ad, we have been ID'ing these as American Eagle. Rose gold case with interesting Kreisler band end pieces with a spring bar at the first link. It is interesting that the first link is almost impossible to remove from the watch case without ruining it. The band detachment point is below to install either a matching bracelet band or leather. Makes me wonder if this is original and the watch was offered on a choice of leather or bracelet. I received it as seen.
Pretty clean and keeping time.