I have these on one a CZ-75BD and similar sights (the Dawson 310-230) on a CZ-75D PCR.
They are easy to see, and much better than the factory sights, IMO. I like the dominant front sight -- it is easy to pick up and see against different backgrounds and under various lighting conditions.
I put a set of Trijicon "Bright and Tough" sights (model CZ-02) on a different CZ-75BD, and like them too. Both of these types of sights have a somewhat larger white ring surrounding the tritium lamp in their front sights, and that makes them very easy to see. The Trijicons have a slightly shorter sight radius (distance between front and rear sights). The Trijicons cost just a tad less than the Dawson sights; both types are top quality.
I had CGW install the Dawson sights - they did a great job and both the CZ-75BD and the CZ-75D PCR came back in fairly short periods of time, perfectly aligned.
I installed the Trijicons myself, working slowly and carefully, and that turned out fine. I used a Dawson punch with a nylon tip to install the Trijicons --
https://dawsonprecision.com/dawson-precision-sight-installation-tools/ The original front sight retaining pin could be re-used but was a bit smushed, so I ended up ordering an extra one ($1.00) so the job would look good.