Not my most exciting Girard-Perregaux, but still fun to appreciate the attention to detail of matching the hands to the hour markers and the concave polished bezel that highlights to dial (and makes taking photos a headache).
Likewise. Mine is also in use today, on my @DaveK mystery lanyard. Most obvious difference is the 12 and the 24-hour dials. I have one quibble with mine. Even with it’s recent service and the correct NOS mainspring, mine only runs 37 hours on a wind, and I forget to wind it! But that’s okay as I am wearing two wrist watches today, as well. Wearing three watches comes in handy because you have more time to do stuff!😉