I bought the brown calfskin quik change strap specifically for my new Tudor Black Bay, and it did not disappoint. The strap almost has a distressed look to it that compliments the Black Bay's vintage asthetic well, and it is thick enough to work well with such a large watch. To be honest, I wasn't sure what to expect when buying a leather strap from a company who specializes in nylon nato straps, but what I recieved was a well made, beefy strap that is the equal of or better than any other strap...