ClockParts.com

Beware! I purchased a quartz clock movement from this place and found that the threaded shaft length was incorrect. Their return policy is an absolute scam intended to extort more money from you. Shop elsewhere! I purchased what I needed on eBay for 1/4 the price.

I bought a 2inch clock insert. It was 29.99; with shipping it was $41.16. It could have been sent in a first class envelop instead over almost 12 for shipping. It is a piece of plastic junk. It may look okay in a picture, but don't be fooled. The poor quality is nowhere near what I paid for it. I don't even care if it keeps good time. I was trying to replace a really cool brass insert and was willing to pay for something decent. Not at clockparts.com,. I definitely do not recommend.

It was impossible to actually talk to someone to figure out the exact part that I needed. They have NO phone number. I ordered what I thought was correct but it was not. I returned it and asked for a refund, but received no response. They took my money and delivered nothing!

I ordered a C cell movement and received an AA cell movement. After I contacted ClockParts, they asked for pictures, which I sent. No response. I returned the part and requested a refund. I have not received a response or a refund. All sales final—even when they send the wrong parts. ClockParts is a rip-off.

Ordered parts 2 weeks later nothing. Order says "processing". Sent multiple emails and got incoherent copy and paste replies. Emails are a complete waste of time. Calling is equally useless. Filing a charge back with my bank tonight.

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.

ClockParts agreed to replace a defective clock insert...but never seemed able to get around to shipping the replacement part, even after asking over several weeks.

Update: After posting this review, my part was shipped.

Be aware their clock mechanisms are made in China, not the USA. They sent me the wrong clock, but since "sales are final" I was told I would have to pay the return shipping and the restocking fee before they'd send me the correct item. Their customer service rep responded to my initial email, but then ignored follow up inquiries. Now I have a clock I did not order and can not use. I wouldn't be so upset if they would have at least responded to me. Don't take the chance.

I ordered a replacement part for our clock. Over $100. It was packed poorly and the plastic encasement was chipped. The chime sounds terribly unpleasant and garbled. They told me all sales are final. They do not care if you're unhappy with the quality of their overpriced products. I thought it would be best to order from them over Amazon but NO. You can make returns through Amazon. Out $110. Disappointing

You cannot give minus stars otherwise I would!
Clockparts.com is a complete rip off and a total scam. I myself, like many other people who have reviewed on Google and Sitejabber.com, paid money to receive exactly nothing from this company. Allegedly in Culver City, California, this innocuous business website features a kindly old grandfather-like chap in its simply-explained videos which show you how to disassemble and reassemble clocks. It's just that he doesn't really exist! Whoever answers the phone will tell you "he died".
Bottom line: You receive absolutely nothing but they take your money, stop calling you stop emailing you and tell you that the USPS has lost it, because they picked it up, it has a label and a tracking number and therefore it must really be in the mail. It is not! Oh how they lie! (Notice the multitude of reviews like this on Google and Sitejabber!)
I bought the same exact clock parts I ordered for $46 from this rip off company from Amazon for $16!