The Apple Watch received the update to watchOS 7.3.1 this week, which was released just a couple of weeks after watchOS 7.3 officially arrived. It was launched to correct the problem that prevents the Watch 5 and SE from charging when the power saving mode is activated on them.
Although there is still a group of users with this error, as the company itself has already recognized. Therefore, they have announced that they will replace or repair that watch for free.
A small number of users with the Apple Watch 5 or the Watch SE are having this problem that prevented them from charging the battery when the power saving mode was activated, which causes the watch to show only the time. That is why the firm released the update to watchOS 7.3.1 quickly, with the aim of solving this failure, although it has not worked in all cases.
Apple has published a list of affected models, which you can see in the software version of the watch settings, where the watch model is mentioned, with its number. So you can see if yours is one of those affected.
Users with an affected Apple Watch will be able to arrange a repair with the firm and in case the problem is not solved, a new watch will be given for free in both cases. This way you can get rid of this problem in it and enjoy your watch normally again.