Merkin
For the Weekend
🙂
WRT reliability, the Canon P is similar to the classic Leicas, maybe a bit more sturdy. But it can certainly take more than any OM (and I have four). Don't know about the FM-2n.
If you want more more robust than Leica M[234] or Canon P, I recommend a Nikon F.
Roland.
Perhaps I got two bad examples of Leicas, but the two leicas I have owned have by far been the two most fragile cameras I have ever owned.