The camera does not carry a name but was made by the Leon Bloch company of Paris and sold under the Watson name. It is fitted with a Cooke lens with a serial number indicating manufacture in the mid/late 1900s. The lens bezel has the French SGDG patent marking.

It was advertised in 1911 with either a Cooke or a f4.5 Tessar lens the price was £8 and £11 respectively. By 1913 a new model was advertised with a modified shutter, the Cooke lens was no longer advertised but a f6 Holostigmat was available. The camera was advertised after the war as the Sportsman in 1923, available in binocular or monocular form, illustrations show the camera fitted with a film pack adapter or a changing box. This must have been remaindered stock imported from abroad, the camera was not priced and may not actually have been sold.

The camera was also sold as the Argus by Nettel of Sontheim in Germany prior to World War I.