Thanks for the great info DC! I now believe that my F1 (CAZ 1110) which is 42 mm has been increased to 43 mm, with the newer model being the CAZ1010. They increased the size from "man" (1) to "large man" (0). So, a 1 mm increase in size to go along with the new logo! It seems like such a small change to make - I wonder why they did it?