I should get the toy of in two days ...
But meanwhile I read your comments (a big thank you by the way), and went to fishing on the news.
1. the life of the battery depends on the frequency of use of the cardio.
On a large GPS + cardio bike (garmin edge 800), it is stated in the instructions that the life of the battery is 1.4 years for daily use (+ gps cardio) of an hour. This duration is drastically reduced in the event of repeated use of the backlight [.....]
Battery change. considering the power needed to watch for al intensity of the stack, which it otherwise may drain quickly, causing the signal reception problems from the waist and a slightly low backlight.
The most powerful cr2032 batteries are 230mAh (; qid = 1424985452 & sr = 8-25 & keywords = + cr2032 mAh), I think that being reasonable it may be possible to exceed the 2.5 years of life (on a it seems to read my blog up to 5 years ...)
2. Etancheite.
It says in the manual that one should not push the buttons when the watch is submerged.
With respect to fogging problem occurring even without water use (I wait to receive my watch to check), it does not seem unreasonable to think that the rotation of the cover when changing the battery can damage the sealing gasket. Making sensitive watch wrist heavy sweating during exertion or in saunas / steam rooms (watch watch runs from 0 to +50 degrees Celsius).
Probably that he need to verify at the time of replacing the cover, the seal is not damaged and that it is well positioned (same for the case of the midsection).
Following the adventures after a number of trips :)