I can’t comment as an owner but I did spend a good hour or so in a Normandy AD a few years ago being shown the range. They seemed really well made and the dealer was obviously very proud that they were able to showcase a French make that rivalled the Swiss. I was close to buying after being treated to a couple of glasses of wine but decided against it. The dealer still gave me a bottle of local calvados as a thank you for looking!
For alternatives I would check out the Toric and previous generation Tonda’s from Parmigiani. Classic styling, Patek levels of finishing and usually available with big discounts.