Well, maybe it's because you've seen my article comparing the F-91 alternatives a while back. My pick ended up being the W-86; which is similar to the F-91 but better in almost every perceivable way. It isn't quite so small but features improved
swiss replicas watches resistance and a much better backlight system, which is readable in low light.
It's still comfortable on-wrist and also features an improved default strap for a slight price increase over the original. If you like the F-91 but want something that does the job even better, this could be it. It doesn't yet have the same cult following; though it may in a few years.
https://cliqafriq.com/read-blog/11629_heritage-and-vintage-reissue-watches.html