Apple Watch app doesn’t connect

With the development of the phone app, I hope a new Apple Watch app is coming. I have the series 8 and lever lock. Every time I try to use the watch to unlock the handle it times-out because it cannot connect.

It may be that your lock Bluetooth is not activated. Please try to delete the lock and reconfigure it.

I think Bluetooth is fine. I can connect/control the lock from the iPhone app. The problem is my watch doesn’t connect to the lock.