This affordable quality mechanical watch is probably one of the best under $200. This new Orient Mako comes with rubber band but you can replace it with something like this 22mm nato strap.
Features:
Self-winding automatic
Case diameter: 41.50mm
Mineral crystal
Fantastic lumination on indices
Water resistant to 200M
Also available in other colours: black or orange (with SS bracelet - slightly more expensive)
Check out some reviews here
Very tempted. Had this in my cart for a while. Would look nice on a nato strap. Torn between this and a Seiko Skx007. I dislike the second button at 2 o'clock however, ridiculously it changes the day, not the date. I think the Orient Mako has a better WR rating, excellent quality diver though.