Accutron Deep Sea 666 Feet. - 1970 ( N0 ). Tuning Fork Movement 2182. Dual Signed Crowns. Faded Yellow Inner Rotating Bezel & Second Hand. Case Diameter. 40mm Excluding Crowns X 44mm - Stainless Steel. Lug Diameter 19mm.
Great Watch, my man!
Accutron Deep Sea "A", in this 1972 catalog.

I confess my ignorance to Accutrons and diver watches, but that is one Very nice watch, so would someone please explain the reason for two crowns? Thanks.
Gary
Does the top crown adjust the internal diver's bezel ring?
It should do.
Cheers Guys. Yep top crown rotates internal bezel. 4'oclock crown normal time setting.
What I have noticed from the cat. page you have bobbee the bezel is counting down from 55 right of the triangle. From the triangle to the 15 minute position it is colored Orange Which as a diver would make sense showing minimum air time left but the models in production or in the flesh have the bezels like mine?
Hard to show as mine is quite faded to light yellow.

Sweet timepiece, dude.
My address is......:^)
Very nice watch and a great catch from Bobbee on the advert.
In reply to your question (very late!), the "countdown" style in the ad's bezel is the divers preferred version, and it is not for how much air is left, as they have a meter for that, but rather a dive time counter.