Randolph Engineering Aviator - Titus Welliver - Bosch
Welliver wears the Aviator model with gold frame. It's hard to see which color lenses are in the frame, it looks most like AGX lenses, but could be grey as well. This model sunglasses can be recognized by their bayonet temples, that are designed to fit comfortably under headgear.
Buy Randolph Engineering Aviator sunglasses online on Amazon.com, on Randolph Engineering, at UNCRATE or find these on eBay. There are different sizes, colors and temples available, so make sure you get the pair of your preference.
Randolph Engineering began as the American dream - two immigrants that started a company making machines to build the parts for other metal eyewear companies. As the others started moving overseas, Randolph started their own sunglass brand and remains the last of the metal eyewear companies made in the United States. Having had a contract supplying the standard-issue glasses to the military since 1982, Randolph is known for their exceptional quality and attention to detail.
Reference: Randolph Engineering Aviator, gold frame
Thanks to JW for the ID