The former has a transparent caseback, yes,

Oct 12, 2018,00:48 AM
 

while the latter a solid one.
The case number is situated in the middle of the solid caseback and at the side by the other model with the transparent back.

Because the one with the normal ( solid ) caseback is the older model, it has different type of buckle and strap, the box and the papers are also different from the newer model.
Movement, dial, hands are the same, as far as I know ( the movement is for sure! ).

The one with the solid caseback is much more rare!

Yours,

Adam

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Glashütte Original Senator Navigator 100-09-07-05-04 and 100-09-07-04-04

 
 By: Kasey : October 12th, 2018-00:29
Trying to determine the difference between these two watches. Could it be that one is an exhibition back and the other solid?

The former has a transparent caseback, yes,

 
 By: Speedie74 aka Mr. Torquise : October 12th, 2018-00:48
while the latter a solid one. The case number is situated in the middle of the solid caseback and at the side by the other model with the transparent back. Because the one with the normal ( solid ) caseback is the older model, it has different type of buc... 

Thank you Adam. [nt]

 
 By: Kasey : October 12th, 2018-01:02