Does not it feel a bit loose?
After I was unsuccessful with a recent WTB I bought 2 Maratac NATOs from the USA [expensive].
The new one is on the left, as you can see there is just a bit more room between the rings for a watch head.
This fitted my Fortis B42 much better as its quite long,I should explain that the stitching is in front of the top ring so you cant pus the watch right up.