for what it's worth a few comments about 3711. A very special watch, produced in low numbers for only a couple years First Nautilus with display back. Heft and gray tint of WG. Simple black dial works so well on this watch. The older Nautilus case has a slight vintage vibe.
Can't think off the top of my head of another WG Nautilus on bracelet, or an older Nautilus with black dial (other than flat dial/Romans of 3710).
Don't worry about how many were produced. If you have the chance to get one, take it.