Congratulations! Now the fun begins... Enjoy every moment as each moment is special and doesn't come back. They grow up so quickly and you can't turn back time.
I ordered a new bezel for my rubberclad sec@12 from PT. I'm pretty sure any of the bigger dealers cant get these parts. Just as ask the one you prefer...
AFAIK the sec@12 all have the bezel-screws that go all the way through the case and that are tightened with the caseback-screws.
like this...
The general construction of a noobmariner is not much different than that of any average waterproof gen watch. Screwdown crown, screwdown caseback, o-rings
After a couple of years on the forum you keep seeing this particular question coming up periodically.
I love the fact that the internet gives you a vast amount of free information and entertainment. I also don't like people who switch on the meter for every question answered or advice or help given.