From what I know the TOG was introduced in 1955 as an award given to US Air Force pilots returning from combat missions.
The US Air Force has an exhibition flight team called the Thunderbirds that was started in the 50s and I believe the name was taken from that. Recently, probably due to the discontinuation of this Watch, many PWC members and HKWF members asking this watch.
These are three watches that we have had located in Hong Kong.
They are Blue, Black and white, unique movable bezel, red second had and date! Three lines, outstanding Look!
The Blue one has paper too. Interested parties can contact us for more price information.