If you were to take the ocean rover 181175LSILN and change out the dial and hands, you'd almost be there, but It wouldn't be cheap. I think picking up a Ginault for 500 euros is wishful thinking.
https://ginault.com/ocean-rover-181175lsiln/
I'm thinking that the caliber 7275 is just TC's 2824-2 clone. If you could pick up a TC KH 16610 dial and hands, it should be an easy swap.
You'd still have to deal with the crown and clasp and the caseback if it really bothered you- but who's going to see the caseback?
But I do think the easiest way to a budget 16610 is to find one from a TD which has a decent asian clone, if they're still around. Unfortunately, 16610s are getting hard to find these days.
I recently picked up this 16610 case with a 116610 dial and hands and a SH3135 movement. I installed a bezel and insert which I had lying around and an old noobmariner 93250 and made a somewhat updated 16610. Of course I still need to get the SH3135 serviced- it's running ok but the autowind assembly is suspect