Purchased from the USA in 2017 box certification booklets are neatly stored right down to the carrying case and even the label.
It's the flat-top model in its period, the case and bracelet are all in titanium, the inner dial is carbon, the glass is sapphire and the exterior is chrome.
It's a very light watch and has flight features (it's called pilot's watch, come to the touch center part and it has features like weather, sea altitude, compass, dual watch).
Zero is $1025 on the official Tissot website.
You can confirm its authenticity in the Tissot store wherever you want (when you pick up the watch, you will understand that it is indeed original).