Default Gear not charging

Last couple of weeks I've noticed the Gear has been charging intermittently.

Now it has stopped altogether.

I do not think this is a hardware issue as when it has been charging there has been no indication it is on plug it in, no 'charging' status shown but watch charges anyway.

Now nothing....any ideas?
SGN3 Previously: HTC One X,HTC Desire
Nokia 6230i [I]still use [/1][B]HTC Excaliber/B] [I]fragile screen [/IHTC Wizard (t-mobile Vario) Pre 2005 I used various Palms, still use Palm Script app on my androids..Motorola RAZR (rubbish),Sony Ericsson J100(colour!),Motorola Pebl u6 (rubbish), Samsung D500 (brilliant, still own), Motorola t190 (boring ), Nokia 8210 (brilliant), Ericsson T28 (1998, brilliant the first tiny phone), Nokia 5110 (1996 legendary),Nokia 1011 (1992]