I have a black leather P-75 Swiss military holster and matching 9mm magazine pouch, looking for the correct issue belt for the holster. Searched the web but can't find any clues, would a Sig member from Switzerland know what belts were used? Holster has a 1.75 inch belt loop.

It´s either a 60mm belt with a two prong steel buckle or a 38mm leather belt with a one prong aluminum buckle. The wide one was for officers and nco, the 38mm for the enlisted. Color was natural brown.
Belts for entlisted can be found easily. Officers belts are difficult to find because they could be kept with the pistol and the holster after being discharged form service.

OTD thanks for providing info re the Swiss belts.