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Antique Clocks/number on plate


Thanks, first of all, for your willingness to help. I am trying to figure out what the number stamped on some movements means.  I have read that it is the pendulum "drop" length. What does that mean? I have tried to understand Goodrich's "modern clock" but that is way over my head. So if my Waterbury movement is stamped 5 3/8, how long should the suspension spring be?  Or is that even the right question?  Any guidance is appreciated.  Thanks, Bob

I have never known if that is for sure related to the pendulum length -but I suspect that it is for some manufacturers-I have never used it for that purpose though

my book shows a Waterbury steel plates in a gingerbread case having 5 3/8 on the leg has a beat per hour rate of 8595.92   

your question is right - not sure what your clock looks like or what pendulum it has?

these had suspension rods or "feathers" cut to length- can't be so long that the pendulum hits the bottom of the case - so start there and try it to see how it does for time with the pendulum adjustment (if it has one) centered--then just tape it on higher till you find the right spot then cut and bend to that length.

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Kenneth Saunders


Any mechanical clock question - no battery clock questions and no appraisals. 47 years as a professional clock repair person- still a full time clock repair service owner. Attach a photo if possible and note all markings on the rear of the mechanism- thanks


47+ years as a professional clock repair person- still a full time clock repair service owner.


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Comment - Of the 7 antique clock experts provided by, you, Mr. Saunders, were the ONLY one who provided the correct answer that allowed me to solve the problem for which I sought help; thanks a million!!! Comment - On a scale of 1-10, I would give Mr. Saunders a 15 on each category. His responses were clear, addressed my questions and concerns in a way that even I could understand, and even sent a picture. He explained what I had and how to resolve the issue. I was amazed at how quickly he replied to each on my e mails. He shouldn't get a gold star, he should get a whole box of them!!! Thank you Mr. Saunders, I will keep you on my e-mail "speed dial". Comment - Ken answered my question regarding how to adjust the proper striking of the hammers on my Grandfather clock within a few minutes of my sending the question to him. He answered my follow-up question the next morning. I would rate him higher if there was a number larger than ten in the selection box. Thanks again Ken Comment - I RECEIVED AN ANSWER WITHIN AN HOUR.OUTSTANDING SERVICE.YOUR RATING SHOULD BE HIGHER THAN 10. Comment - This Man is Fantastic...there is no Scale for a him...if there was...He'd beat the top of Smile....I could never ask for more ....this Man is his Score.... Comment - It's happening!! The clock has run for about 8 hours...I appreciate your quick response and clarity of directions. Thanks so much ! Kenneth really knows his stuff, he has the knowledge about where you can buy replacement parts and where to get repair service or do it yourself. I think I can fix it myself and receive the full value of my clock. He even sent me pictures of clocks like mine sold online so I could get a good idea of the value. Thank you Kenneth for responding so fast and making me feel so confident in repairing my own clock. I vote Kenneth Volunteer of the Year.

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