You gotta be top wizzard with search engines Luciano...

OK... I'm thinking positive... really positive...

1. I'm thinking that any time you meet a Black wire comming out of any device, it's got to be the cold or Negative Lead... I'm also thinking of US Power leads now...

2. I'm thinking that any time you meet a Red wire coming out of any device, it's got to be the hot or Positive Lead...

3. I'm really thinking Positive with this next one... that ANY Digital Device (despite the fact that it's a watch that's probably designed for an SR44 1.5v Battery) can be plugged into a 5v Supply and reliably work (see start of thread above)...

4. I'm also thinking that the Green wire is a Ground/Earth designed to provide you with a degree of Lightning protection when the watch is worn on the wrist...

5. I'm open to offers for the function of the White wire...

Gawd I need more caffeine...