Automatic mechanical watch error - a reasonable range of errors First, automatic mechanical watches I type ( male form ) Travel time instant error range: Excellence products every 24 hours error -20- +30 seconds; first-class product every 24 hours error -30- +60 seconds; qualified products every 24 hours error -50- +90 seconds. Continued to go more than or equal to 36 hours. Second, automatic mechanical watches II (medium-sized table) Travel time instant error range: Excellence products every 24 hours error -25- +50 seconds; first-class product every 24 hours error -40- +80 seconds; qualified products every 24 hours error -60- + 120 seconds. Continuation of travel are greater than or equal to 30 hours. Third, the automatic mechanical watch III type (Kun table) The instantaneous error range of travel time is: excellent product every 24 hours error -30- +70 seconds; first-class product every 24 hours error -50- +100 seconds; qualified product every 24 hours error -70- + 150 seconds. Continuation of travel are greater than or equal to 28 hours. If the daily error is almost the same, indicating the quality of the table is better, you can go to a more professional repair shop debugging, we must go to the formal place of debugging, good table is not bad but broken bad! Poly fashion watch network Recommended reading: Quartz watch is good or mechanical watch good ladies watch brand list the world's top ten watch brand watch list