I doesn't understand all of the questions.

Date of invoice i'm unsure of.
Warranty Starts: 10/10/2012

Case color and Dial color i'm not sure of.
The clock is black leather with blue and silver inside the glass.

My issue is that a screw/pin has been loose, and the whole backside has gettin loose.

I've mail about that with Enis Tufina in 8/8-13.
I now sending the clock with recommended letter to the adress given and, if there's any problem in terms of payment in return, contact my through 
 mail or phone.
I assume that this is under the warranty.

Kind regards / Joacim Qvarnström