Interesting version of the Premier ref 788. Seller states it's a Venus 178 but pretty sure it's the smaller Venus 152 like the Breitling version. The case looks like it has been overly polished. I think it's another example of a Swiss watch company buying cases from the same supplier as Breitling vs being made by Breitling especially with the Tourneau Swiss import code on the balance cock. Too bad the dial is a mess.
https://www.ebay.com/itm/Vintage-1940s-50s-Tourneau-Chronograph-Wristwatch-by-Breitling/162934937917?hash=item25efadd93d:g:XrwAAOSw87RaoHLI&autorefresh=true