I'm deeply in love with the cal 39, with i find to be a beautiful and relieable movement with a bit of history. One might not like the history, but it is probably one of the reasons Glashutte Original survived, and a link back in time.
My attraction the new Senators - and cal 100 - is the elegant watches and especially the new dial. Seeing and handling the watch a couple of weeks ago ricked my firm belief that my next GO should be a panomatic or a Panoreserve.
If I should choose my first GO today? Cal 39. Why? History and reliability.
Merry Christmas