This was made in two forms one being a stop watch the other a chronograph. Both had a Wynne meter attached to the rear of the case. The chronograph form was released a year or two after the stop watch. When introduced the stop watch cost 32/6 compared to an ordinary Wynne meter at 6/6. The price rose considerably after World War 1.

The wafer pattern was a thin version of the Wynne, When introduced the cost was 8/6, it remained on sale until the early 1930s by which time the price was reduced to 5/6. The scale on this example is only marked to f4, advertisements from the BJA 1913 show the largest stop to be f3.5, also the stop below f5 is marked 5 ½ rather than f5.6. A US dial was also available.