KMII[Montblanc Moderator]
50248
A theme I like...
A lot! So here are two from my collection that would qualify in terms of overall thinness (under 6mm both)...
SCVL002:

Heritage Chronometrie Ultra Slim:

And one which is thicker as a watch (curved front and back) but has the thinnest movement in my collection - the VC 1972:
HAGWE!