Hi I shortened mine titanium tantalum gold brace a few weeks ago and the tantalum part that are sandwiched between the gold is not solid gold, I have seen somewhere here that they called it to be "capped" the layer of gold is pretty thick close to 1mm.
The ends of the brace that is fitted to the watch case have solid gold parts.
But this watch is over 20 years and I believe that the band is original ever since the watch was new, but I can't be for sure if it have been replaced during the years but after all it's still in a great condition.
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