I have a black watch Kilt as my Uncle was in the Black watch, It does have an unfortunate association with the Campbells, but it is a Tartan to be worn with pride as a Tartan of a Highland regiment. Its very common to see Black watch worn at weddings by people who dont feel they have a surname related Tartan, and I think the hire shops like it becasuse its easier to keep clean !!!! plus it looks really cool as well !