The metal bracelet on the 4178 is extremely rare and changes the character of that vintage chronograph a lot, IMHO. I think I would prefer that one on a leather strap, but it is dazzling to see it on the gold bracelet, and perhaps after wearing it awhile, I might be very convinced by the bracelet.
The three generations of VC's sports watches presented us with three generations of VC bracelets, each with their own merits. In my experience, there is not much out there more luxurious than the current generation Overseas bracelet. It feels and looks like no other bracelet. For me it is really unbeatable on the wrist. That said, I also really enjoy the Overseas on leather and rubber straps.
Best,
respo