In have tested on running and under heavy rain...no fogg inside.

 

This is your new Speedmaster chronometer, yes?
Which variant of the Speedmaster collection is it? Close-up pictures, please !

And most importantly, congratulations on your new Speedy

 

Nice [emoji106]
I wear my speedy pro when running too. Currently it replaces my polar rs300 [emoji16]

 

hey jones

hey jones,
my omega speedmaster co-axial moonwatch realizing now that after every 2-3 days watch time goes ahead to 15sec than normal time. I have also reset so many time but problem is continue.. plz suggest
thanks

 

Your watch is accurate to +5 seconds a day in average of all positions from the factory. Try leaving your watch in a different orientation to gravity at night.

 

every 2-3 days is adding 15sec... now its running 1min ahead from normal time .. how does a gravity changes this ?

 

This the reality of a mechanical watch. COSC spec is −4/+6 seconds per day, so you're within that spec. Gravity can affect the movement, so try laying your watch at different positions overnight to loose a little time. I'd probably first try the watch on its side with the crown pointing up.