Hi all so recently whilst posting about my newest arrival a Breguet Classique Ultra Thin and the way I was measuring its thickness something amanico said struck a chord with me that possibly my attempts at accurately measuring how thin this watch and my Boucheron La Caree Ultra Plate were being measured really wasn't that accurate. I admit my eyesight is no longer 20/20 and using a tape measure maybe wasn't such a good idea after all to get an accurate reading. So I sought and bought a jewellers electronic digital caliper and now I have accurate measurements and whilst not as good as I initially thought they are still well within the size to be considered as Ultra Thin watches. Below are the results and some pictures. and finally apologies for posting incorrect information I will try to avoid making such a stupid mistake in my excitement again.
Boucheron La Carre Ultra Thin 25mm x 25mm 3.3mm thin.

Boucheron La Carree Ultra Thin 3.3mm

Boucheron La Caree Ultra Thin wrist shot
Breguet Classique 3150BA/11/286 Ultra Thin 33mm 4.3mm thin

Breguet Classique Ultra Thin 4.3mm

Breguet Classique Ultra Thin
Finally a shot of both of them.

Boucheron La Carree Ultra Thin/ Breguet Classique Ultra Thin.
Once again my apologies to all on the forum for misleading you and I will try better not to make such a silly mistake again.
Marc