Atomic Clock Movement vs Auto Set Movement - ndbatteries.com

Atomic Clock Movement vs Auto Set Movement

ClockParts
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Atomic Clock Movements are a Thing of the Past! CLICK HERE! to get an Auto Set movement

Call Today: 888-827-2387

Auto set battery clock movements have now changed the way we adjust clocks for Daylight Saving Time(DST). For the past decade or so a radio controlled movement, or Atomic clock movement, was the best way to do this.

Unfortunately, there are a variety of AM broadcast issues which can undermine the reception of the atomic clock signal being broadcast.
In practice, AM (amplitude modulation) radio waves can achieve great distances. There are potential problems which include interference from appliances, power tools, light dimmer switches and (especially) solar geomagnetic storms, which are quite common.

An Auto-Set clock movement does not have the potential problems that an atomic clock movement does. It’s simply more reliable. Now Auto-Set movements completely eliminate the need to receive a radio signal at all, and still adjust for Daylight Savings Time (DST) twice a year.

These Great Auto Set Motors can be see at;

All of the potential problems with a so called Atomic Clock Movement are gone. We at Clock Parts have introduced Auto-Set movements! They take advantage of a new technology which utilizes a digitally based computer chip, which serves as a pre-programmed digital clock movement.

The main power source is the AA battery, but the time is sequenced by a tiny quartz chip which oscillates at a very regular frequency. It requires extremely low voltage. The common, and long lasting LR44 battery keeps the chip running when the standard AA battery is removed and replaced.

The AA battery also drives a high torque movement capable of operating clock hands nearly 18″long. A common use, is for large wall clocks that may be installed high up on a wall. Imagine not having to get out a ladder to change the time twice a year!
In the Fall, the internal clock movement will signal the movement to stop operating for exactly one hour (fall back). In the Spring it will make the movement operate at a higher speed for about 6 minutes to advance the time by one hour (Spring forward).

We have Auto-Set movements for operation in the four time zones of the continental United States (MVT708USAS) as well as a “world” model (MVT708GSF) that can operate in all 26 time zones around the world.

We are confident that you will see the advantages of using an Auto-Set battery operated clock movement.
Call us at 888-827-2387 to learn more!

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17 Comments

  1. How often does the battery need to be changed? Currently, I change the batteries when I make manual adjustments for daylight savings time. I doubt that I will never need a ladder, as you described, if I still have to change the battery at some interval

  2. im getting this so i wont have to get on the counter to change the clock on the kitchen wall, another for the wall clock in the living room and even another for a floor clock also for the floor clock i will get an uninterrupted power supply from this company

  3. What happens when Congress changes the daylight saving time law?
    I had a atomic clock/radio set clock that ignored the DST info from the radio. When the law changed, it was wrong for a few weeks in the spring and a few weeks in the fall. To make it display the correct time, I actually had to adjust it four times a year!

  4. You assume that the only reason someone would want an atomic clock is to have daylight savings time adjustments made automatically.

    The reason I use them, is because they poll the WWV signal several times each day, and /adjust themselves/ to maintain consistently accurate time. 

    I don't believe that your "autoset" clocks can do this.

    Also, I have a watch (Casio) that sets the hands /back/ an hour in the fall, in just a few minutes — doen't just "stop" the clock for an hour.

  5. These are still quartz clocks though? That means they will drift a little over time requiring the user to have to periodically adjust the time.

  6. I keep looking above my head for some reason.

  7. Another product with no market. If you want accurate time get a radio clock.The rest of us swap clock batteries when we change the smoke alarm battery.

  8. What kind of daily/monthly/yearly accuracy is the Auto-Set​ Movement capable of?

  9. Just a nit-pick, but it's Caesium-133, not Caesium-131.

  10. great vid you are a common scence logical guy thankyou

  11. They work well, but after a few months they go from silent to louder, and Louder, and LOUder ticking.

  12. You need to set the teleprompter CLOSER to the camera! It looks like your're looking UP!

  13. A clock should not adjust itself unless it's accurate (by receiving a signal from an actual accurate clock). This auto stuff sounds gimmicky at best. Also, what if daylight saving time is eliminated? The "auto" clock is going to be completely useless. Not impressed.

  14. The biggest issue with non RC clock movements these days is accuracy – it has really gone down the drain. Moevements from the 70s are typically way more accurate (even adjustable) than todays movements. Nobody seems to make great high quality movements anymore. Most of them is way of at 1 sec/day and sometimes even more(!) and that adds up imho way too fast. An uncompensated 32khz tuning fork crystal that these clocks use is not the most accurate. And manufacturers don't even bother adjust it rudimentarily at say 25 degree celsius (just over normal room temp). If they bothered adjusting them they could perform very decent as such clocks are normally kept at a quite narrow temperature range but a little variation over the year is to be expected.
    I have a few non RC clocks with their original movements that I tressure. Trying different values for the crystals load capacitor I've managed to get them within +½ minute at each change of DST. While not a stellar performance it's very acceptable granted they're not temperature compensated – but out of the box not many movements are within that – even if you don't care if the ½ minute is to the fast or slow side.

  15. My beloved Sharp Atomic Analog Wall Clock stopped working a few weeks ago. It's been hard finding a replacement; I was beginning to wonder if they had become obsolete but I think I'd prefer it since the DST rules keep changing. I brought it to a fixit clinic, which are held sporadically in my area. The fixer got it ticking in a few moments, but it reset to 6 pm instead of the actual time, which is what it does when it can't find a signal. No worries, I brought it home and, strangely, as soon as I touched it, it stopped. Since then I've tried resetting it repeatedly and it only runs intermittently and hasn't set itself. The battery contacts are tight and I see no corrosion (the fixer cleaned them anyway). Sometimes it randomly begins ticking then stops, as if possessed! I've had it for eons with ZERO problems and I love the design so I would like to get it working again. Any ideas? The little circuit board is marked 418A.

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