I really love the Helson Skindiver for a whole host of reasons, but was wondering if it was my only option for a reliable, mostly period-correct workhorse diver in the vein of a Fifty Fathoms? I've seen a few designs from Prometheus (the Manta Ray) and MKII (like the Paradive and the Sea Fighter) but wasn't hugely blown away. Any suggestions? Maybe a NOS Seiko redux? Or should I have been more blown away by the aforementioned? Or is the Skindiver unique in that it's one of very few?