There are basically three things that set this watch apart from the standard, non-limited edition of the Glashütte Original Senator Tourbillon. The first is the color of the dial. It's silver grained instead of matte black, giving the watch a slightly more classic, traditional appearance. The second is a subtle touch where the Roman numeral should be at one o'clock: there is a "No. X/25" styled to look like the hour marker. I'm someone firstly against extra text on dials and overt branding, but this is subtle enough that it doesn't really bother me. Finally, there are the deep blued hands in place of the rhodium-plated set on the original.