BTW: I found that circuit simply by Googling for: 1Hz crystal oscillator
underestimating linear circuit design.
Just a simple idea.. But dont know if it works for you.. U can take a clock cob board from a clock or alarm.. And loop out the coil connections.. And that will give u a 1hz clock. I have used the same with peojects which needed 1hz clock.. U cant get any simpler than that.!!! Or just in 2 dollars... U cant go further cheep!