Spinnaker makes some cool pieces - the watches are usually named for pioneers in diving (which I find cool) and they are well made. I've owned this one, also, the Bradner with the rice bead bracelet and internal bezel. That one has an issue with a non-screw down crown for the internal bezel. The problem is the crown is not tight and sometimes the bezel gets misaligned through contact with sleeves or anything. I still love the watch, but it's annoying. A screw down crown would totally solve the problem.
This watch, the Dumas, which is inspired by the Omega SHOM, really is nice. Now that I've remedied the bracelet keeper issue, I like it a lot more. It's a lot of watch for the discounted sale price of $300 shipped. It has a sapphire crystal and a mineral crystal covered, lumed bezel.
So far, it's a keeper!