After playing with the strap a little more, I decided to email Rob and cancel the other strap, thanking him for his consideration. The length is actually pretty good for a no fold over, no loop back fit and I figured out that the fabric keeper was a custom option that would actually make strap changing more difficult.
I have to say that the canvas is far more soft and comfortable than I anticipated and looks great. This is a must have for any field watch, vintage or not. The strap has no holes. The buckle tang has a sharp end like a tiny nail and it has infinite adjustability. While I have several watches that this strap would look great on, the brown dialed Hamilton seems the obvious choice.
The Original (khaki) strap comes in 17.5, 20, and 22mm widths and lengths of 250 and 270mm, while the black and O.D. green straps only come in 17.5mm. Custom lengths are offered as well as an RAF strap option that can be done in custom widths.
