I have owned the M50 DSS watch by St. Moritz for the past 5 years.  During that time, it has been nothing short of a pleasure to wear.  It's solid 316L stainless steel brushed case has taken a beating but has only very small dings to show for it.  The sapphire crystal is still perfect and unscratched.  The quartz movement is as accurate as ever.  I only recently had to change the "10 year" battery--I could not find it locally and had to order one off Amazon.  The bezel is very functional and clicks with ease.  I have received quite a few compliments and even a co-worker went out and ordered one for himself days after I showed him the watch.

All that said, the only thing I found lacking in the watch was the shiny hour markers.  It was just too flashy for me and seemed out of place.  I also would prefer the side grooves on the bezel all the way around like classic dive watches.  When I saw that St Moritz came out with an M50 Mark II with classic military-style dial and numbered hours, I was drooling.  After a few days of consideration, I had to order one and couldn't be happier.  This is a very handsome watch!  I love looking at and admiring the beautiful new dial.  It is still the same great watch, but with an improved makeover.  Gotta love that.  I have it on a ballistic nylon NATO strap that has 316L buckle/rings--the perfect marriage.