Sub £400/$500 Tool/Dive watch - unusual recommendations

Hello all - I recently sold my diver because I can’t wear a 45mm on my 6.5 inch wrist, no matter how nice it is. However, I love a good quality diver/tool that I never have to take off, even if going for a swim; I also love a rare watch that I don’t see often. I was tempted by the Vostok but I’m still not super happy with buying a Russian watch at the minute, though it offers the best value in this area, I think. I’m interested in microbrands or off-beat recommendations. Happy to buy nearly new, as the Boldr Freediver with the textured dial and Alkin Model Two with the internal bezel I’ve pictured above can then be in the price range. Anyone have experience with these or have other suggestions? I’m only after automatic or mechanical. 

And sorry, no Seiko - the only ones I like are too big for my wrist!

Thanks!