The Fontainebleau came in a stainless steel case but you might find versions in gold electroplate... but they may be a different model altogether.
Most of the Fontainebleau line are big and chunky, a style that doesn't really appeal to me. However, I recently had an example sent to me that was in need of a little TLC... specifically it needed a stem and crown. It's not unusual to find project watches in such a state as two-piece stems are meant to separate and sometimes the crown gets inadvertently snagged on a something and comes off.
This model has an Odyssey-like case design and you can see the model number is 64047-3. This case opens by turning the outer ring counter clockwise 1/4 turn and then the ring can be removed and the case back lifted out.
Getting the ring to turn is VERY difficult and it's even more challenging since the outside of the case has a sharp bevel and can't be hand-held. Fortunately I can wedge it into my case holder so I don't bugger up the ring by slipping the opener tool.
Here you see the principle parts of the case design... the bezel, the crystal, the case back (with the movement and dial) and the retaining ring. The crystal is inserted into the bezel from behind and the flange on the crystal is sandwiched between the dial and the bezel. This specific example is missing the gasket that should be between the crystal and bezel.
Inside the case is a 21 jewel Hamilton caliber 64A - basically a 21 jewel version of the 17 jewel 694A. Notice the female end of the two-piece stem installed in the movement. That means the crown-side needs the male side.
Here's a photo of a replacement stem and an uncut stem. Replacing crowns is surprisingly difficult. You need to have the correct outer diameter, style, if it's waterproof the correct opening, perhaps a tube, etc. etc. etc.
The challenge of installing a new stem and crown, once you have a crown, is to cut the stem long enough that the crown fits just right... too long and it will stick out, too short and you have to start over again. Check out the challenge below... how long should the stem be?
I find the best approach is to purposefully cut the stem a little long and then recut it over and over until it's just right.
I use a Dremel tool with a cutoff wheel and I hold the stem with a pin-vise.
I'd say it's still a couple of mm too long.
Once I think I'm close I can install the movement, insert the stem, align the male side with the female side and pop the two together to see how it fits.
Well, it turns out I had to cut it about as far as possible in order to get it short enough to fit properly. The long tube on the crown will help support the stem and crown in the stem tube of the case.
With a proper-fitting crown and nice alligator strap, this Fontainebleau is now ready for wrist time!