The Stopwatch function do not display the time but...
Actually I have found that little workaround on my Instinct which was the first of the Garmin's watch with some great "Clock" access but still with a timeless stopwatch.
Eventually I choose the YOGA Activity as it is not triggering the GPS chip and I rename it "CHRONO".
In this activity I have created a data screen with only two fields: Time of The Day and Timer.
I use that activity when driving a long trip for example.
Easy peezy lemon squeezy ! :-)