The kind of watch depends on several things:
-How much you're willing to spend
-What style of watch(sport,chronograph,dress)
-What kind of bezel:stainless steel,gold,titanium,etc.
-What kind of bracelet:steel,gold,leather
-What kind of movement:quartz,automatic
That said,here are a few classics:
-Cartier Classic Tank- a timeless dress watch.White dial,roman numeral hour indicators,black leather strap.
-Omega Seamaster-great combination of sporty and stylish