And particularly ref 2461 as well as ref 425. They are incredibly classy and charming, this is definitely a watch for connoisseur. As you mention to my knowledge not all were originally delivered by PP with a faceted crystal (plexi actually) but the majority were. This faceted crystal is the small detail that makes a big difference imo. All are nice but for these watches I very prefer colored gold (yellow or rose) rather than white gold or platinum as it brings more flair and highlights the vintage look of the watch.