I own a thermo-corrected quartz watch and I can't measure the drift on it. Between the twice yearly changes due to daylight saving time the drift is less than a

I own a thermo-corrected quartz watch and I can't measure the drift on it. Between the twice yearly changes due to daylight saving time the drift is less than a second. I continue to be amazed that I can have something this accurate strapped to my wrist.