Serial number: 11100,
The Game-Master is a very impressing stopwatch when you have it wrapped around your wrist. I guess that a football referee would have been proud to wear one - I have used mine to time my running.
There is an Mk. I with Game-Master in italics and Mk. II using capital letters.
At one point I had tree Game-Master but now I only have one, complete with manual, pouch and cardboard box.