Are you referring to the Solid 18k Gold Dragon Lupah from Invicta, that is the only listed solid gold watch from Invicta that I can find.
This watch (in your post) is a 2 tone watch, so center links and bezel would be gold, but this watch is gold plated, and even if not with a two tone, 91 grams of solid gold puts it's weight above a solid gold Rolex Day-Date (entire bracelet and entire case).
But yes, Invicta made some great watches, the watches when they used the 7750 movement still sell today for prices above $1,000 USD, especially the Pro Diver.
Is this the watch you're referring to, Valjoux 7750 movement and 135 grams of Gold?
Attachment 342383