How to set a classic manor quartz west minister wall clock to chime at the correct time.

Sounds like it has a battery quartz movement as opposed to mechanical which is just for chimes. I expect there were many models.

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Source: Wikipedia

The full hour chime is followed by one strike for the number of the hour by Big Ben (E3) (one strike for one o'clock, two strikes for two o'clock, and so on). ... The mechanism then plays two complete sets of five sequences for each complete hour.

Source: PortableFireplace
Learn how to fix a mantel clock that chimes at the wrong hour. This simple fix will repair a clock that chimes at the wrong time. This can commonly occur when your mantel clock is laid down on its back and the timing is offset.

1 Thing You Have to Understand First On most clocks you can turn the minute hand counter-clockwise but SOME clocks are not safe to be turned in that direction. For this reason, it's best to only turn your minute hand clockwise just to be safe.

The Simple Mantel Clock Adjustment The easiest way to adjust a mantel clock chime is to move the hour hand to the hour that the chime is striking. Make sure that the hour hand shaft is not too tight or else it will not turn. Most mantel clock hands are friction held. DO NOT BEND YOUR HOUR HAND, loosen the shaft if it will not turn freely.
Once you have synchronized the hour hand with the hourly chime, adjust the minute hand to set the clock to the correct time by moving it forward (clockwise) around the clock face. Allow the chime to strike at every quarter hour strike.
Mantel clock Chime Adjustment When your mantel clock chimes the wrong number of times, your chime is not synchronized time of the clock. To adjust your mantel clock chime, proceed with the following step:

ADJUSTING THE HOURLY CHIME

1. When your mantel clock chimes, count the number of times it chimes. This is what time your hourly striker is set to.
2. Move the hour hand to the hour indicated by the hourly chime (count the number of gongs at the hour).
3. Reset the time using the minute hand to the correct hour and the chime should adjust along with the clock hands as well.

ADJUSTING THE QUARTER CHIME

On most mantel clocks, you can simple remove the minute hand which is friction fit. You have to apply pressure on the tube and it will loosen. Once removed, re-install the minute hand at the correct time. From there you can rotate the minute hand to reset the time.

Not sure if this will work for you but I had a used one and when I set mine at 12 it would chime 9. So I turned my clock backwards to eleven then ahead to 12. When I did that it chimed 10. I kept back and forth till 12 chimed 12.Then it was reset.

Try removing the batteries. Set clock to 5:45. Reinsert the batteries, and set to 6:00. it may take an hour for the clock to sync., but it should do the trick. The only thing I can think of for the magnet would be that it may have fallen out of the pendulum swinger where your pendulum hangs. Hope this helps. Good Luck.

In a quartz movement clock, with a problem like this, the chime box (or whole movement) will need to be replaced. Timesavers.con carries a large selection of chiming quarts movements.

If this is a mechanical clock, make sure the chime lever is set on. If quartz there is a reset button to forward the chime advance until it matches the hands.

It is normal for the average wall clock. Of course, this can be adjusted, but without watch/clockmaking knowledge it is impossible, because first you need to find out which part of the movement is causing early chiming - and there are plenty of them.
Super fine adjustment can be found only in top of the range clocks. Hundreds of hours of craftsmenship are spent to adjust and fine tune them. That's why they cost a fortune.
If you can not live with that early chiming, you have to bring your clock down to the watch/clock repair shop and ask for help. Be ready to pay quite a money, as this job takes the skill and a lot of time.

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The next time it chimes multiple times turn the hour hand clockwise until it is pointing at the number of times it gonged. Next take off the dial nut off (make sure to put it in a plastic bag because they can be hard to replace) and turn the minute hand until it chimes signaling 15 minutes after. Now put the minute hand back on pointing to 3 o'clock and replace your dial nut and you are all set.
Fix Clock That Gongs Wrong