GUB changed their numbering system from the 60 series to the 70 series.
For the 60 series, they distinguished the "1Q" movements with a different number:
GUB 60 - small seconds, basic
GUB 60.1 - sweep seconds, basic
GUB 60.2 - small seconds, Guteuhr
GUB 60.3 - sweep seconds, Guteuhr
The 60's were not issued in chronometer spec, unlike the 70.
The 60 Guteuhr's were distinguished with a few finishing differences as well: better finish on the visible winding wheels, for example.
GUB seems not to have done this with the 70, opting for functional performance and a screw balance for example.
Anyway, your examples are very attractive; maybe your should make it a Glasshutte week on the wrist!
Tom