Watch power problem 

After nearly a week with my Apple Watch (Milanese loop), I am surprised at how rapidly it uses up its battery when doing nothing.

This morning was typical: Watch on at 0540 with 100% charge after eight hours on charge. But by 0810 that had fallen to 91% despite my not looking at the Watch once.

I suspect it may have activated repeatedly whilst I cycled in to work. But sufficient to consume almost a tenth of its total charge?

I wonder if there will be a fix in the first software update.