My understanding............and I'm not that technical when it comes to bike mechanics/electrics................is that although the engine is much the same that is really the only similarity between the 998 & 999 Testastretta models.

Essentially though, design features & components for the 998 rely on the heritage of the 916/996/998 base design.

The 999 is a total redesign of just about everything and as Felix says certainly the clock wiring design is totally different.....sorry.

The clock and related instrumentation on the 999 is brilliant though!!