Apple Watch

Since the last Watch OS update my Apple Watch has been consuming battery like mad. I have reset the device and configured it from scratch with no effect. I've had it on for about 4 hours today and scarcely used it, and it is now down to 55% battery life. I am in to process of turning off background activity on apps to see if an app is doing it... So far no luck.

Apple Watch 4 44mm cellular with latest Watch OS and iPhone 11 Pro Max