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Just got my smartwatch 2. Is there a way when i turn off the smartwatch, to have bluetooth on my phone turned off automatically? I tried creating an event through Smart Connect (have bluetooth off when Smartwatch disconnected ) but it doesnt work. The popup windows says "bluetooth off" but it doesnt go off 
it'll be easier to use an smart tag to turn off your bluetooth but it wont turn off your smartwatch
I also try...
In Smart Connect
I active the Event "bluetooth disable" on "smartwatch2 disconnected"
It doesn't work at all 
If you choose another action (I open an installed APP) it works!!!
So I think that the problem is "some missing autorization" to enable/disable bluetooth.
So you have to wait until Sony resolve this problem...
Or you can resolve this using TASKER.
You can create a TASK that disable bluetooth and run this "task shortcut" from Smart Connect on the event "smartwatch disconnected"!
(like before... you only change disable bluetooth with the "task shortcut")
NB
I don't need this Event, but it would work fine.
I will try it when sony fixes the bug in 4.3
cause right now my smartwatch 2 is useless!!! No wifi connection when smartwatch2 is connected with bluetooth 
I use smartwatch 2 with Samsung S4 (Android 4.3) with no problem...
And with the Google Edition 4.4.2 also with no problem...
So I don't think there is a bug with 4.3 but maybe a problem with your rom/configuration.