Before buying a (used) Marathon JSAR I'd read quite a lot about the brand, which mostly relayed that Marathon supply the Canadian Military, and generally build tough as nails watches. I was therefore excited to get one.
However, my (admittedly brief) experience wasn't good at all. I've also seen quite a few used GSARs for sale (the tritium auto model they do) where the lume pip on the bezel has fallen out.
Seems to me that Marathon make great cases and bracelets (which many enthusiasts say are brilliant, even though they only utilise push fit clasps?!), but the movements are maybe not so great.
The cost of a Marathon watch is usually pretty high for the spec imho. Not for me
The Victorinox I'd highly recommend. Seems the brand is a lot better value in the US, so buying a used one from the States is a good way to go imho.