Just bought the mini quartz pendulum movement and it runs 4+ hours slow. The movement shows a Final Adjustment feature on the back. However, buyer beware! Their is no working speed adjustment option on this movement!
Waist of money. Amazon has replacement for 1/3 rd the cost.
Stupid me for not checking first! And... Amazon has a 100% return policy. Clockparts.com does not.
Products used: Ordered replacement from Amazon. Less expensive and with full refund if not satisfied. Stupid me!