iWatch and iPhone alarm not in sync

Hi, David!

Thanks for visiting the Apple Support Communities. From your post, it sounds like since updating to iOS 13.1.2 on your iPhone 7 Plus and watchOS 6.0.1 on your Apple Watch, your alarms aren't mirroring as expected on your Apple Watch. I'm happy to help!

First, make sure you have Push Alerts from iPhone enabled in the Watch app > Clock on your iPhone: Add an alarm on Apple Watch - Apple Support.

Notifications mirrored from your phone appear on your Apple Watch only if your iPhone is locked:Notifications on your Apple Watch - Apple Support. If the alarm on your Watch does not go off while the iPhone is locked, try restarting both the iPhone: Restart your iPhone, iPad, or iPod touch - Apple Support and the Apple Watch: How to restart your Apple Watch - Apple Support. Then make a new alarm and test to see if it is working as expected now.

If you need more help, don't hesitate to respond back.

Best!

Thanks for following up, David!

We're happy to hear that everything is working now. It was our pleasure to help!

Enjoy the rest of your weekend!