I wonder if those zones are actually well-tuned to your heart rate.

Any workout that could score that high of an exercise load and exercise effect on both aerobic and anaerobic for me would basically have me floored for multiple days.

How hard would you say this effort was? What kind of an effort was it?

EDIT: To add - it's been mentioned in other places in the thread, but heart rate is highly individual. The advice of 220 - age being your max heart rate is so off it's kind of not even funny.

Heart rate when measured only by a watch can be a bit hit and miss - for truly accurate data you want a heart rate strap or an armband-based monitor. This is only really important if you're truly interested in optimizing though, so if it's not, feel free to not bother. Watch sensors can tend to over- or under-read though, especially when there's plenty of arm movement involved.