Don't forget that Daniel Craig himself is an Omega ambassador and shown on the website as a separate celebrity brand ambassador under "Screen Legends" on the Omega website alongside Clooney, Kidman and Redmayne and he has been one since around 2011 with him promoting the Deville Hour Vision Orbis.
https://www.omegawatches.com/planet-omega/cinema/our-screen-legends
Many people aren't aware or simply forgot that he is an Omega ambassador. Being Bond probably made him an easy choice to be their ambassador but he only became their ambassador 6 years or so after being Bond which started with that beautiful blue Deville Hour Vision. No doubt he was seen wearing his personal Rolex watches before he became Omega ambassador. But after being ambassador, we've seen him wear nothing but Omega on and off screen. So whoever is the next Bond actor, as long as Daniel Craig is still their ambassador and of course depending on how long he has left in the contract or if he extends it, we will definitely be seeing him wearing an Omega in his future movies or public appearances.