This thread I've started hasn't exactly invited an onslaught of outside comment, so, though a bit embarrassed to do it, I'll put up “a little” more, if for no other reason than it's kind of fun to post.
I thought I'd explain IN DETAIL a few(!) of the specifics as to just why I'd so much like to see a circa 1963 conservatively classic in form front-loading Jenny “Caribbean” mono-bloc 316L or 904 steel case loaded with a full soft iron antimagnetic “Faraday Cage" that is lined inside in lieu of a formal movement holder with a simple of manufacture and [even in freezing and below temperatures] appropriately soft yet sturdy while thin enough synthetic material rear and side impact buffering inner floor and walling that abuts forward to the inside rear periphery of the dial and forms a "rubber room" of sorts that closely wraps and cradles from shock the movement that is capped by an edge-drilled crown stem release port equipped 60s golden era aesthetic matte lacquered and lumed soft iron dial while a strict generic thread specification Rolex “TripLock” pattern crown tube is screwed to the side of the case at 4:30 or 3 and fitted with its generic spec OysterCrown after the strap lugs are run through with well Loc-Tite'd or miniature NyLoc'd self-thread collet screwbars before the heavy-duty notched and threaded retaining ring placed at the peripheral “flange” of the mil-spec acrylic, or scratch resistant dress watch sapphire, or even shatter-resistant / aerospace grade - perhaps “best-of-both-worlds” borosilicate glass, or whatever composition of choice crystal is screwed down onto the solid steel of the case's integral crystal seat upon which sits a heavy and fully interceding flat synthetic gasket that also slightly overhangs its seat to gently hold in place, buffer, and check the forward thrust of a spacing metal chapter ring that in turn the dial and the movement attached to it depend on to stay in their place and benefit from the transferred buffering effect of the cushioning overhang of the crystal gasket to complete the protection of the watch's mechanism against hard knocks as the now geodesic-like whole can then hopefully become “more than the sum of its parts” by coronation with a durably fonted and pipped traditional in appearance state-of-the-art lockable-set type ratcheted timing bezel, or optionally NOT in order to keep things plain bezel simple, sleek of form, friendly-of-cuff, and “tougher in the rough”.
Having just written this above atrocity of the English language I call a “paragraph sentence”, it does appear mostly self-explanatory, so I think it best to pretty much leave it at that for now before being banned from the forum for committing gross, grammerless, and boring verbosity.
But, as is typical of me, though, I always find myself wanting to tack-on “just one more thing” AFTER I wrap it up, so, just to maintain my style, I'll add (at least) one-and-a-half-or-so of the earlier threatened points of explanatory detail that might otherwise escape notice (God forbid):
Because its case needs neither a separate back piece, or the rather complicated helium escape valve required by other gas-dive capable case designs lacking a screw-down crystal for resistance to negative pressure, the above theoretical version of a Caribbean construction mil/dive/tool watch has only two points of opening that require sealing against water and whatnot, at the crystal and at the crown. With both of these, the sealing is accomplished by tightly sandwiching a “squishable” synthetic seal between two opposing parts without those two opposing parts, by design, ever contacting each other so that each opposing part can only ever bottom out on the synthetic seal itself as long as the seal remains in place.
This allows for the sealing of the above design casing and crown to perpetually compensate for the inevitable wear and compaction of the synthetic sealing material over time, use, and disassembly, by simply just properly reassembling and periodically tightening down the crystal retaining ring as might be needed and/or the crown as you go about your daily use of the watch. The Russian Vostok Amphibean design famously and effectively uses this directly analogous sealing principle both at the retaining-ring secured domed steel caseback and at the single cap top gasketed crown that bears tightly upon the top surface of the crown tube each time it is properly battened down.
The, I think, superlative Rolex TripLock and TwinLock OysterCrown designs work on the same principle, but in addition to the wear compensating primary sealing accomplished by the large tube top bearing gasket inside the cap of the crown, these Rolex design crown units also have multiple donut-shaped seals inside the crown tube that bear laterally against crown stem and tube walling for a back-up measure of water resistance even if the crown is unintentionally left loose or unscrewed. The TripLock version of the OysterCrown also has an additional gasket at the base of the crown tube that forms an initial or forward line of defence against moisture entering when the crown is screwed down in place