Vintage JB Champion 18.7 mm st. steel wristwatch bracelet with trifold clasp | eBay
JB Champion - Speedmaster Bracelet - YouTube
J.B. Champion (Gold Tone) | Vintage Watches
Historical Perspectives: The True And Sad Story Of J.B. Champion, Jr., The Man Behind The Most Expensive Watch Without Complications Ever Sold At Auction - Hodinkee