I think the 'Rising Sun' Speedmaster from 2018 is one of the sharpest versions out there, but I never cared for it on a bracelet. I once saw it on a Himalayan croc strap but that material is very hard to find. Finally got word from George at Genteel-Handmade that they had it back in stock. I think this is the most expensive strap I've ever owned, but it's a beautiful material. I use an Artem deployant buckle which I like better than the standard Omega DP.
Newly acquired, thought I'd give it a try… Some cool vintage ultra deeps out there but hard to beat 500 bucks for 30 ATM resistance, sapphire Crystal, ceramic bezel and a nice clean face.
I guess I never pulled the trigger on the Baltic aquascaphe but that seems similar with a slightly smaller case.