Clock fogged from the inside; absolutely useless in winter

I have the clock since the start of October. When it was warmer there were no problems. Apparently you have but never tested this clock in practice during the winter. Did outside temperature over 13 km at about 3 degrees two runs. Pretty much from km 6 fogged the clock inside. Since it did not help to make sure that neither the sleeve from Funtionsshirt nor the Running Gloves on the clock were.
After a week a completely new clock Garmin ..... and exactly the same problem gabs again. After about 6 km this clock also shoed again from the inside!
The values ​​can thereby be barely read. Since it does nothing when the clock home is quite surprising readable again. But Garmin even advertises the fact that the clock is restricted waterproof. Then I wonder, however, why they appear at colder temperatures (without rain) for normal running can no longer use ..... Can only sagen..NICHT BUY, which is a shame because everything else is working fine.

..... UPDATE: Have now the next clock get as a replacement:
These fogs just like the 2 previous models. A shame, because Garmin seems instead to solve this problem to be limited to the sending of spare watch ..... After all, they gave me yoy. to which it is a general problem. (Which is also yes other reviews confirm)

....... 2 UPDATE: as you have suggested to me at Garmin, it would be a temporary problem + I with a half as expensive clock (Ultra Sport) then problems with the GPS - reception had (walked through the water and even within Berlin 300 meters altitude difference! ) .... I dared again and quasi the 4th !!!! Clock ordered: Funny, I had not somehow surprised: from 3 kilometers, it slowly began to + 8 kilometers could be nothing more to read, since once again completely covered from the inside.

Last conclusion: art would be ok. Processing (Taiwan) is easy dog ​​miserable. Clock below 5 degrees Celsius unusable. Waterproof is simply a lie. Fogs up during normal running. Problem is not remedied. Do not buy unless you walk max. 3 km and in summer temperatures.