Many of our customers ask us questions about their Grandfather Clocks Moon dial, how it works, what it does and how to read it. Hopefully we will answer all the questions about the moon dial in this posting.
The first item one needs to know is the numbers on the dial represent the "DAYS OF THE MOON" and not our calendar days.
When the moon is "new" or there is no moon, the dial will indicate a picture of a house, a ship or some theme the Grandfather Clock manufacturer had in mind as pictured above in this post.
As the moon in the sky progresses, so will the moon on your Grandfather Clock dial. Every 24 hours the moon gear on your Grandfather Clock will advance one notch, which means the moon gear will advance slightly up the numbered scale, indicating the "day of the moon" or how old the moon is. The way to read the moon phase on your Grandfather clock, is to line the center of the picture (or painting) of the moon with the number on the scale.
The picture to the right indicates that the moon is 14 days old, one day from a full moon, which a full moon is 15 days old.
Our website has an on-going moon calendar for our customers, if you click here, the link will take you to our home page for you to see the current phase of the moon.
When clocks were first introduced to homes, the phase of the moon was extremely important to our ancestors. By knowing the phase of the moon, one would know the best time for traveling, as well as planting a garden and many other chores throughout the month.
The moon dial on a Grandfather clock also gave the manufacturers of the clocks to add a personal touch to their Grandfather Clocks. Many of the older Grandfather Clocks or English tall case clocks, as many people called them, had a painting on the dial along side of the moons (each dial has 2 moons to keep the calendar accurate). The paintings often indicated something personal to the artist, clock maker or the customer that was having the Grandfather clock made for their home. We have seen several older Grandfather clocks moon dial have a painting of the actual home that the Grandfather Clock manufacturer made for their customers.
This was not done often, however several Grandfather Clock manufacturers would provide the artist for the customer and let them choose the painting of the moon dial. We serviced one English tall case clock that had 3 homescapes on the actual face and moon dial. The first home on the moon dial was the original homestead the Grandfather clock was made for. The other 2 paintings of homes were paintings of the homes that the Grandfather Clock was passed down to as time went by.
Dennis L. Fulcher
5/17/2019 09:52:54 am
I have had my grandfather clock repaired 4 times. and still the moon dial wont work. what can i do to fix it. tired of all these guys not fixing it.
5/17/2019 06:52:26 pm
Can you send a picture of it to me so I can see which one it is, there are several
9/4/2019 02:21:30 pm
Moon dial mechanism came loose during a move. Rod with ratchet is loose, It is a Kuempel Chime Clockworks movement. What goes where?
John A Regalbuto
9/4/2019 02:24:24 pm
How can I send you a picture?
9/13/2020 02:40:22 am
How did the Jauch 77 trigger the moon dial? Was it inherent with the stock movement or some kind of gear or lever add-on. I have acquried the dial and movement to restore but cannot figure out how the dial connected to the movement. The dial has a lever near the hole for hand shaft that gets pushed up to rotate the dial.
9/13/2020 10:44:30 am
12/10/2020 11:21:25 pm
Can you tell me where you could find this beautiful moon dial?
1/3/2021 11:47:29 pm
We would like our moon dial painted? Ours is very plain. Any idea's?
9/24/2021 06:01:03 am
hi I have a moon dail was working now isn't .
12/11/2021 08:12:50 pm
Our Blalock tall case clock (Carlisle, England, ca. 1823) has been in the family for several generations. Everything works except the moon phase, which was "disengaged" during one of several moves. The ratchet and lever have a lot of slack in them; there is no positive engagement of the parts related to the movement of the disc. There was mention of a pin in the disc that might have been broken during the move. We are totally mystified as to how to restore the moon phase functionality. Any useful observations would be appreciated.
2/7/2022 07:54:35 am
I would like to use one of the illustrations in your website showing a lunar month dial in one of your grandfather clocks to illustrate an academic paper containing another five illustrations related to time and astronomy. Where do I apply for permission?
2/7/2022 08:54:02 am
You are more than welcome to use a picture off this site.
10/6/2022 06:15:13 pm
my moon dial has quit working and now spins freely ... worked before we went on vacation but coming back and trying to reset won't work ...any suggestions ??
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Clock Repair Service has been in business for over 10 years now. We service more Grandfather clocks than any other clock company in the state of Georgia. We have 2 Grandfather Clock Technicians that are on the road Monday - Friday repairing 2-3 Grandfather clocks per day, EACH.. That's allot of clocks in the past 10+ years. Our service area at this point is from Chattanooga, Tennessee down to Macon Georgia. The bulk of our Grandfather Clock repairs are however, in the Metro Atalanta area. We service Grandfather clocks ranging from 200+ years old to current models. We do service all brands of Grandfather Clocks and we are an Authorized Sales and Service center for both Howard Miller and Ridgeway clocks.
Let us know if you have any questions 678-462-7856