Ask most builders in the high sixties what layouts they offer and you get one owner's arrangement plus a variation on the guest cabins. Galeon's answer on the 640 FLY is different, and it is the reason this boat is worth a serious look even if the brand is not already on your list.
There are three lower decks. Not three fabric packages - three arrangements.
The three layouts
Below deck, three distinct layouts, each giving private bathrooms to the three principal cabins. You choose between the midship super master, the twin guest quarters, or the charter option with four cabins to accommodate extra berths.
That is a genuine fork, not a trim level. The super master expands the owner's suite amidships. The twin-guest plan gives that space back as berths. The four-cabin charter version maximises accommodation for hosting or for putting the boat to work. The accommodation comes out at three or four cabins plus one, with three en-suites and a day head.
What holds all three together is a detail on the deck above. Galeon puts an independent entrance to the master cabin on the main deck, so the owner's suite is reached without walking through the guest accommodation - and that stays true whichever layout you take. The crew cabin aft, meanwhile, is entered from the hydraulic bathing platform, so crew movement stays out of the guest areas entirely.
The two numbers I would look at before the speed
Draft: 3' 3", measured without propellers. Bridge clearance: 24' 9" from the waterline at minimum draft. Height to transport, if you are shipping the boat: 29' 4".
On a 68' 3" hull displacing 78,264 lbs in light craft condition, a draft in the low threes is unusual and useful. Combined with the bridge clearance, those two figures decide which cruising grounds are actually available to you - a fixed bridge or a shallow inlet will settle the boat question faster than the top speed ever will.
The other figure worth taking seriously is maximum load: 12,125 lbs. That is your headroom for fuel, water, stores, tender, toys and people combined, over a light-craft displacement measured with base engines. Specify a heavy tender and a full watermaker and that allowance moves quickly.
Beach Mode, and an honest comparison inside the range
Beach Mode is the fold-out side platform system: glass balcony panels, a bar counter, integrated stools, and a beam that goes from 16' 5" closed to 24' 3" open. It is the party trick and it works.
But here is a comparison worth making inside the range. The shorter 620 FLY, four and a half feet less boat, opens to 27' 2". If the fold-out balconies are the reason you are looking at Galeon in the first place, the smaller boat is the wider one at anchor. The 640's advantages over the 620 are length, fuel capacity and the three-layout choice - not the footprint.
Against the larger 680 FLY the trade goes the other way: the 680 is four cabins as standard with a carbon hardtop over the flybridge, and the 640 answers with layout flexibility and a shallower draft.
The numbers to pin down before you sign
Galeon's own materials quote the length overall two ways - 68' 3" and roughly 66' 2" - so for anything that costs money by the foot, work from your hull's build documents.
The same goes for the rest of the paperwork: the dimensions on a slip application, a haul-out quote or a marina contract should come off your build contract rather than off a published figure.
Performance, and the paperwork behind it
Galeon quotes the 640 at up to 30 knots. Engine power comes as a band - minimum 2 x 900 hp, maximum 2 x 1,200 hp, twin diesel - settled at the order desk from whatever the yard is offering for your build slot.
So insist on paperwork. Ask for the engine package written into the contract. Ask for observed fuel burn at cruise in writing, from a boat that has actually run. Then do your own range arithmetic against 991 gallons rather than accepting anyone's estimate.
The deck details that actually get used
A few things on the 640 that are easy to skim past and hard to live without once you have had them:
The front entrance to the bow. Galeon turns what it calls the typically inaccessible bow into usable space, with a convertible sundeck and seating reachable from the helm area rather than only along the side decks.
The galley's side door. A fold-open window and a side door next to the galley make an outdoor bar counter with stools, so one galley serves an inside dining table and an outside bar without anyone carrying trays around a corner.
The cockpit canvas. The U-shaped cockpit settee can be closed off with a canvas for privacy - or for watching the screen concealed in the galley top. It turns an open deck into a room when the weather or the hour calls for one.
The carbon bimini. The flybridge roof is carbon with a retractable soft panel - carbon in the bimini rather than in the structure, which is weight taken out in exactly the right place on a boat with this much upper-deck furniture: a complete bar, dual front-facing seating and a generous U-shaped sofa.
What I would settle before signing
Three things. Pick your lower deck with the way you actually cruise, not the way you plan to cruise - the layout is the one decision on this boat you cannot revisit. Get the engine package and the observed burn in writing. And measure your bridge, because 24' 9" is a genuinely good number and it is only good if it is good enough.