I built a version of the clock on perfboard, this time using a real 2764 EPROM, see the photo in the details or gallery.

I have nothing good to say about perfboard. It is not a serious circuit board technology except for small circuits. The main difficulty is getting good solder joints with flying wires. Stripboard is only slightly better and has its own drawbacks. The only reason I used perfboard is because I had a last one lying around from decades ago and I decided to use it up. Certainly I won't be getting any more.

I got the clock to boot and show the time but not advance. Also there were unreliable joints which caused the clock to stop working if I wiggled the board.

I consider the point of the project proven and won't be doing anyting more with this design so I'll mark this project as completed. Time to release the breadboard space and move on to other MCUs.