Apple Watch Series 3 exercise goal much too easy

Thank you, fieryjack. I did as you suggested: "Unpair and re-pair and setup as new." I thought this would fix the problem, but no. Within a couple minutes after my "new" Apple Watch was set up I got the attached alert. Basically, I've made two-thirds of my exercise goal doing nothing but sit at my desk! Any other suggestions?

fieryjack, I followed the instructions in the two links you provided but it did not help. My watch typically shows me exceeding 300% of my exercise goal without doing anything more than watching TV, sitting at my desk, eating breakfast, etc.. Looking at the daily log, I seem to get exercise credit almost every hour where I get move credit; the bar graph for my Move goal looks almost the same as for my Exercise goal. I don't think this is a calibration issue because it is so far off and my heart BPM seems quite reasonable, e.g. 60 bpm while I'm writing this response. Any other ideas?

Thank you, awuserjan. It is true that my watch is showing excessive stairs climbed. I've not paid much attention to that because my house has 5 levels and each level has a short flight of stairs so I normally do an uncountable number of stairs every day. Already at 9 am this morning my watch shows "23 flights climbed" and I'm half-way toward meeting my exercise goal with no real exercise other than walking around the house. My heartbeat does not significantly increase walking up a mere 10 stairs. However, I'm not sure how that relates to Apple's definition of their "Exercise" goal, which I believe is elevated heartbeat for 30 minutes.

Regardless, with no warranty I probably need a new watch.

Thanks, I'll give this a try today.