Eterna makes great watches. I think the Kontiki Date looks great in bracelet and not so much in leather strap. I am not saying their stock leather strap is not good, I have one with a very nice croc strap. I think you have 3 option:
1. Wait until the bracelet version shows up
2. I found some a few chrono version on bracelet. If you also like the chrono version you can get those
3. Source a second hand bracelet, and get it refinished.