Fella's
I do the safe thing for a living. I have some comments. Kamicosmos, you better hope & pray that door never needs adjustments. Internal hinges are a marketing spoof that pays negative dividends. Any container that has external hinges & a hinge side positive mechanical retention system, be it active or passive bolts or interlocking leaf, is protected from entry by cutting the hinges. Only fools & five year olds attempt to enter a safe that way.
On to the Hamilton XO series current generating lock used by the government for field safes. I keep an XO-9 in stock, you can buy it for $1,200.00. We had to drill one this past week. I'll state as an absolute fact that if you don't know what you are doing with one of those, and don't have the best opening equipment, you are NOT going to have any joy - at all. Properly installed & used, they're very trouble free. They are an electronic lock.
I have an S&G electronic on my personal safe. It's been there for years, trouble free the entire time. That said, the electronic locks do not have the hundreds of years of history that the mechanical dial types do. Which is not to say that the mechanicals are all that good either. What?
It's like just about anything on the market today, you can go low & find your feet in the sewage or pay more & be above the stink. The Homak, Sentry type made in the PRC ( That's People's Republic of China, or RED CHINA ) do not have good mechanical combo dial locks in my experience. They don't have good electronic locks either, but you can get a 'safe' cheap.
Either of the American made brands of LaGard or S&G in either mechanical or electronic will be good locks, backed by a company that literally speaks your language & is located on the same continent. You pays yer nickel, etc.
900F