The Longines is lovely, but once you see those hands... I'd also look at Seiko as they make some killer divers and field watches at very competitive prices.
For divers, there's the SPB453 based on the original 62MAS
or the SPB317 based on the Willard - the watch Martin Sheen wore in Apocalypse now.
There's also the option of the Alpinist SPB151/155.
Iconic, timeless watches all, and my god can the Prospex line take a beating...