The last issue of "Le Quai de l'Horloge" has a couple of very nice articles about the history of the Type XX / Type 20 (I didn't even know that both are correct and that refer to different watches) and of the modern era Type XX.
Confirmed by Breguet. Hyper rare configuration. This is the first time I see it. I start to realize that these vintage Breguet Type 20 are a kind of Pandora box, with a strong diversity of versions... A bit like these good old vintage Blancpain Fifty Fath...
The last issue of "Le Quai de l'Horloge" has a couple of very nice articles about the history of the Type XX / Type 20 (I didn't even know that both are correct and that refer to different watches) and of the modern era Type XX.