The first Omega Seamaster Bullhead was introduced in 1969, and while you can find them on the pre-owned market, they are very hard to come by. And if you do find one, you will likely pay over ten grand.
At BaselWorld 2013, Omega surprised us with a new version of this iconic design. A 1:1 remake of the original timepiece. The 43 mm steel case houses the Omega-caliber 3113. This is definitely a re-issue that has gone to significant lengths to stay faithful to its original.