Some may question this, I don't know if I believe it myself but. . .
I recieved my 750T last Thursday night and set it with my 'other' watch and was happy. Then Sunday night rolled along the obsessive side of my personality set my 750T to the GMT webpage with the intention of monitoring accuracy daily. Well, it has been a busy week and I just now logged on to the GMT webpage and my 750T has not lost or gain a second over a three day period! Unbelievable!
Fyi, I own three automatic watches. Two of them are COSC certified chronometers. My next most accurate watch gains 3 seconds a day and costs $2,000 more than my Doxa.
These watches are amazing! In my opinion, we are ahead of the price curve on these babies.
P.S. - I have only one gripe with my 750T but I'm keeping it to myself for the time being. Doxa is working with me to get issue is resolved. It is true what has been said about their excellent customer service.