G'day,
as far as i recall the Classique Elegance line debuted in 1994, about the time Gino Macaluso became head of Girard-Perregaux in 1992. Previously the brand did have an elegant line of watches of the same name, but with ETA/Peseux movements and not a GP3xxx inhouse calibre. An example of those older pieces is a reference 47990, probably best know for those pieces that were given for "30 anni per lavoro at FIAT" (30 years ofbwork at Fiat).
The Classique Elegance has been the first line of models to be equipped with GP's newly introduced manufacture made movements then. As these were available in two different sizes and with/without a calendar, the Classigue Elegance models were equipped with different indications. As far as I can see, all of them are 34mm in diameter and between 7 to 8 mm height. There's the 9040 models, which still had a manual wind movement based on an ETA7001 and automatic models with an inhouse movement. The 9050 is a model with small second at 9, which is a special feature of the GP3xxx movements, as these can be equipped with a small second at 9 or at 6 without having to change the gear train and thus allow for quite some variations inside a given model line. Then there has been references 9052 (central second) and 9053 (central second with date). For each model a number of dial variants was available. As far as I know, GP then made some hundred(s) of each model, so each specific reference with a specific dial/hands combination was made in rather low quantities. A wild guess if mine would be about 50 to 250 watches in precious metal of each reference, for some it may be less.
As to why the 9040 came with a second at 9 is a little story on it's own: Before Gino Macaluso became head of GP he was the importer for the brand in Italy and not only am architect by education, but a true enthusiast of Design and Artwork ever since. The Italian market strongly requested an elegant watch at that time, which had to have a restricted diameter and height. Now, as they say, many roads lead to Roma, but when you are about to do a watch of 33-35mm in size with three hands, it is quite a challenge to come up with something different than what was available from other brands at that time and in the past. Therefore the idea came up to place a small second at 9, because that was a rather unusual location and the movement allowed to do so without adding a module to dive the second hand and thus increasing the height of the watch case. Subsequently the position of the small second was choose again when the Vintage45 line became a serial production later.
On a side note onnyour specific watch, it may be interesting to know at that time GP used to number movements. If I see correctly it is 3000-470, which should make this the 470th movement of this calibre. I think it's quite justified to say it's one of the earliest GP pieces with an automatic inhouse movement.
On a side note in terms of Classic Elegance models with a classic look and reduced case diameter and height, there may be one other model which could be interesting. In early 2000's, Girard-Perregaux made a small number of very thin manual wind watches reference 4762. This is a 34mm watch, but with two hands only and measuring merely 5 mm in height. One may say it's a bit "Calatrava-esque", very classy and extremely comfortable with a very nicely made case. These were equipped with different dials and precious metal case colours. So when you're into this timeless look, which I think is a classy choice, it may be worth trying a little research on this forum (i think i had some notes on these in 2004 or such) or Google.
Finally, excuses as english still is not my language and not adding some more input, but all this pretty much from what I remember. It's a very nice watch and it's great to see it found a caring home, particularly as it feels obviously fine with such a nice Porsche

Greetings from Germany,
Cheers,
PeterCDE