I just changed the battery on my casio g-shock dw-6900 that I haven’t worn in a while and I was wondering why I keep getting condensation on the inside of the watch after I wear it? The back plate is secure enough and the O ring as far as I can tell in place right. What am I doing wrong?

Ok guys, I really need help making a decision. I recently purchased the GW-9500mec-1 from amazon de. After a few days, I managed to also purchase the GWG-B1000EC-A from helveti, along with the adapter from Jays and Kays and the MiLTAT Hexad (Pull-Twist) Black DLC bracelet from strapcode. Now, money is tight so I guess I have to return the GW-9500mec-1 but I am having a hard time doing it
I really like full digital but I’m afraid as soon as the mudmaster arrives, the mudman…

Need help deciding

See people saying online that 5610s and the likes get weird when viewed perfectly straight. Any tough solar casios where this isn’t an issue?