"These 60-70 dive watches are a cool part of the history."
Totally agree.
Twenty five years ago...
I bought a few vintage divers back when they were $50 to $100 used in good condition and still have most of them today. The Zodiac Sea Wolf is a favorite except for the horrible snap on case back. They really bit the weenie on that.
Loaded up on Bulovas, especially dressy Oceanographers but they are not really dive watches with fluted 10k gold bezels like a DJ but they were rated at 330 feet and had 'Ocean' in their name. I call them 'OOs', like in Oh, Oh, is that water in your watch? They came with yellow or white solid 10k gold fluted bezels with yellow or silvertone markers/crowns. The white gold bezel models are harder to find, especially with black dials.
Caravelle also made some steel '666' and '333' dive watches.
They made a slew of 333 ft wr 'Half Devils' with Citizen movements in the 1970s and they are good for everyday wear...cool looks, rugged, thin, accurate, and affordable. Now and then you can find one fairly cheap.
Past few years...
Traded into a pretty good vintage Aquadive 3 or 4 years ago but it is gummed up and I never fixed it. Same with a Hamilton 'Compressor' and a few others that are beginning to be worth fixing.
Many of the less famous vintage dive watches were rated the same as 1960s/1970s rolex submariners but rlx knocked most of them out with a larger selection of models and slick advertising.
Now divers wear a $175 plastic Mares Puck.
While rolex is in the $20,000 Cuff Shooter watch business. Twenty thousand dollars!!
Times have changed.
Here is a good laugh:
http://forums.timezone.com/index.php?t=tree&goto=7621918&rid=0#msg_7621918