Seems a bit later than the watch, however since bracelets were a point of sale item, it could have been purchased from a dealer once the original leather one gave out. Looks like a US supplied piece, possibly J.B. Champion.
It seems rather reasonably priced at just over $400. www.ebay.com/itm/380988980126?nav=SEARCHPurchases made through these links may earn this site a commission from the eBay Partner Network