Wattson and Norman may still have their Emerald teams even though Wattson has Magneton as his ace (well it is his most consistent Pokemon, appearing in his PWT team too and in the original RS) instead of Manectric. There's still hope.
Also that bracelet Sydney has may be a plain normal one. I don't see the Double Helix on it.
This is quite an old post, but after zooming the picture as much as I could, I think there is a double helix in the bracelet.
It's faint, but I can see a silhouette of the helical structure.