The rado original diver is one of the best made watches ive ever owned. So good that i got a captain cook in green as well.
The brand doesn't get a lot of love , but they are great watches, and use a wide variety of materials in their construction.
Although the original diver is quite rare these days, you can pick up a decent used example for about £500 . I don't think you can buy a better watch for £500 , than this, from any watch maker. The tungsten carbide bezel is impossible to scratch , and the bracelet and titanium fold over clasp feels premium. These are incredible watches for so little money. Same with the cook, although not as well built , they don't seem to scratch either. The steel used is 316 , I believe , but it's very bright and tough. If only more expensive watches were made as well as these beautys .