Vintage Westclox Bold II Model 22189 Corded Alarm Clock Tested and Works 70s 80s

Vintage Westclox Bold II Model 22189 Corded Alarm Clock Tested and Works 70s 80s. I noticed when testing the time works perfectly. Alarm works fine, but goes off 2 minutes after the hour. I set the alarm for 5 o'clock and it went off at 5:02. I then set the alarm for 6 o'clock and it went off at 6:02.