Thanks for your comments.
I don't have a one manufacture collection as such. I simply placed the GP photos in one album.
As my signature attests, I have a small collection. A daily beater watch (Nauticfish), plus a chronograph, complication, classic dress watch, etc. I'm looking forward to taking receipt of my latest acquisition, a GP Calibre 32A. 570 is the reported production total for the movement in a variety of cases. Like the Longines UltraChron and the Zenith El Primero, it's a 36 000vph movement.
As far as I know, it has an issue with the movement, but I will have it running again.
Current daily wristwear
1941 Universal Geneve Compur
1964 Girard Perregaux Damier
1952 Girard Perregaux 7421
1968 Girard Perregaux Alarm
1942 Omega
2003 Oris Miles Complication
2006 TAG Heuer Monaco CW2111
2010 Nauticfish 500/6
Incoming
1965 Girard Perregaux Gyromatic High Frequency Calibre 32A
At the watchmakers'
2x
1965 Girard Perregaux Gyromatic High Frequency Calibre 32A