There are numerous types of safes from jewelers to gun safes. The biggest problem with them for us as collectors is water. Be careful when you bolt it down that is likely where the water will come from. You will hear myths about self-sealing doors during a fire. What if there is no fire and your sump pump backs up?
Liberty makes one called a fatboy that is about $1000 on sale delivered. They usually run $1500. It is big enough that your average fella will not be moving and big enough to hold all of your valuables from guns, cards as well as rings and bullion. Water will get in if not the inside will be steam anyway.
Below is a link to talk about water proof safes.
https://blog.safeandvaultstore.com/a...es-waterproof/