The first PP I bought 13 years ago was the 5711a. At the time, the 5711 seemed to be more popular because it was more streamlined. When I ordered it from AD, I was told that the 5712 would arrive in six months, but the 5711 would take more than a year, so...
When you get a chance could you show a picture of the other side of the watch bracelet on your wrist to see how the clasp looks when it is closed? I’m curious if those side pushers stick out when the clasp is closed.
But I've never had a sufficient relationship with an AD to source one and I just can't bear paying the freight on the secondary market. Enjoy! Cheers, John