I finally added a "real" strap to it. I got some leather and learned sewing(Yeah! new skill), It wasn't that easy but I did it and it looks good enough for the first time sewing. picture of the watch with the new strap below:
I also added a vibration motor that I got out of a other old phone. I will make it so that every hour it vibrates for a few milliseconds. You can see the vibration motor stick out in the picture above.