How to identify an antique clock and judge its value
Before anyone can say what an old clock is worth, you need to know what it is. Here is how to read the clues on your clock, what collectors look for, and where to get a real appraisal.
Start by identifying the clock
Value always starts with identity: who made the clock, roughly when, and which model it is. Most of the clues are on the clock itself if you look carefully.
Check the dial for a maker's name or town. Open the back or the case door and look for a paper label pasted inside, a trademark stamped on the movement, and any numbers on the back plate. Photograph everything before you clean or move anything, and write down any marks that are hard to read in a photo.
Clues on the movement
The movement often tells you more than the case. Many American factory clocks carry the company name or trademark on the plates, and German movements from makers such as Hermle and Kieninger usually have model numbers stamped on the back plate, sometimes with a two-digit year.
Also note how the clock is powered and what it does. A spring-driven mantel clock, a weight-driven tall clock and a battery quartz clock belong to very different worlds. A movement that strikes the hours and also plays a chime has more parts than a time-only one, and the antique and vintage clock writer at antiquevintageclock.com notes that three-train chiming movements are generally valued more, though they also cost more to repair.
See also: the names of the parts you are looking at on OnlineClock.app.
What makes a clock valuable
Collectors and dealers look at much the same things. Originality matters most: a clock with its original movement, dial, hands, pendulum and case is worth more than one assembled from parts. The same writer warns that many clocks sold as Vienna regulators are marriages of cases and movements that did not start life together.
Condition, the maker's reputation, rarity and the type of clock all count. Mass-produced American mantel clocks were made in huge numbers and many are common today, while rarer models and limited-run wall clocks can attract more interest. A legible original label or trademark helps, because it backs up the clock's story.
Do not refinish it yet
It is tempting to polish the brass, strip the case or repaint a worn dial before selling. That can backfire. Many buyers want the original finish and patina, and over-restoration can make an antique clock look too new and reduce its appeal.
Having a clock serviced so that it runs properly is different, and often helps. If you are unsure, ask a clock repairer or an appraiser before changing anything you cannot undo.
See also: getting an old clock running again on OnlineClock.app.
Getting a real appraisal
Online price guides and auction results can give a rough idea, but they are not an appraisal. Howard Miller, one of the largest clock makers, tells owners that only a trained professional appraiser can determine a clock's current value, after looking at its age and the condition of the case, dial, movement, weights and pendulum in person.
The National Association of Watch and Clock Collectors (NAWCC) can help with identification. Its Library and Research Center answers questions about clocks and watches, free for members and for a fee for others, but it clearly states that its researchers cannot comment on value. For a formal appraisal it points people to the business directory on its website. Auction houses with clock specialists are another route.
What to send when you ask for help
Whether you ask a museum library, a forum or an appraiser, the same information helps. NAWCC asks for clear photos of the case, dial and movement, plus any names, numbers or trademarks, and transcriptions of marks that are hard to see.
Add the clock's measurements and anything you know about its history: where and when it was bought, and who owned it before. A family story is not proof, but it can point a researcher in the right direction.
Questions people ask
How do I find out what my old clock is worth?
Identify the maker and model first, then have a qualified appraiser examine it in person. Online prices give only a rough idea because condition and originality vary so much.
How do I identify an antique clock with no name?
Look inside the case for a paper label, and on the movement for stamped names, trademarks or numbers. Photograph them and ask a clock collectors' group or library to help with identification.
Should I clean or refinish an antique clock before selling it?
Avoid refinishing the case or polishing it heavily, because many buyers value the original finish. Getting it serviced so that it runs is usually fine.
Does NAWCC give clock valuations?
No. Its Library and Research Center helps identify clocks and watches but does not comment on value. It points people to appraisers listed in its business directory.
Keep exploring
Sources
- What is the current value of my clock?, Howard Miller support
- Research requests, NAWCC Library & Research Center
- Assessing antique and vintage clock values: key factors, antiquevintageclock.com
- Why order a movement?, Clockworks
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