It is the PP 5134 and the casing comes in 4 variations: YG, RG, WG, PT. The dial comes in 2 styles mainly, one with breguet numerals and one with a mix of arabic and stick markers.
There's also the Gubelin limited edition that has all stick markers.
I have the YG version and below are 2 pictures of it on my roughly 6.5 inch wrist which I hope can show how it wears. It can easily suit a 7 inch wrist with no size issues I think.
It's definitely a fun travel or everyday watch as the second hour hand can be hidden behind the main one. You can pm me if you want any further information.