In today's Inquirer on the [style] pages, I came across an article on wristwatches of WWI…it peaked my interest enough to read the piece and look at what was produced in recent times by the gentlemen pictured in this article. The one wristwatch I have has a red numeral 12 and the wrist band is probably made from kid skin and is a Waltham; the serial numbers can be from 1925, in a gold filled case. I do have some nickel cases that I suppose were used in those years. The back of the cover is hinged to the case; and, in 000 size and 0 size. In those years these cases were made with wire lugs. I wonder if these gentlemen are members of Chapter 1 and the National Association of Watch and Clock Collectors.