This is a small LCD clock case matching the cheap and popular 128 x 64 pixel and 61,8mm x 45,8mm LCD module, the likes of https://aliexpress.com/item/1005001621784395.html. No screws (friction fit). I used ESP32C3 SuperMini module to drive the screen and read network time through WiFi. There should be enough room for adapter board joining LCD pins with SuperMini pins, if not - the back can be pushed a bit more outwards (note the case stands on BOTH front and back parts of the case). Now, in case you were wondering, the screen is mounted upside down, so the LCD pins are at the bottom for simpler design/less cabling.