Iphone will not update Apple watch to ios 7.01!

Hi all,

I have an Iphone XR running the latest IOS, which I installed on Friday after it came out. My apple watch 4 was also updated to IOS 7 last week with no problem.

However, when I tried to update my watch to IOS 7.01 on Friday night it just got as far as 'uploading to watch' and stopped there all night and most of Saturday morning (approximately twelve hours). I switched off my phone and watch, switched them on again and tried the update again today and it was exactly the same. When I take my watch off its charger I get the message 'an error occured while the update was taking place' or words to that effect. So, what do now? Is there a way to delete the update completely and start again or do I wait for the next update and hope is superseeds 7.01?

My watch works fine and so does my Iphone.

Some help would be appreciated.

Steve.