The ratings of this clock made me look forward with cautious anticipation of the good piece. At first she was a bit hard to me - but I got used to it quickly. For accuracy: I have the clock, as described by Seiko, raised after delivery disposable hand - that was in the third week of May. Meanwhile, August is over, I have not brought up the clock and not provided. She still goes to the minute, so if you wanted to calculate the average, it is less than +/- 1 sec per day - what you wiill more! I love the clock fun, a masterpiece of mechanics.