La Crosse Technology WT-3102B 10-Inch WWVB Self-set Analog Wall Clock and automatic DST reset,Black/silver

Update November 6, 2023: The following statements in the writeup for this clock are completely false:- Automatically sets to exact time- Accurate to the second- Automatic updates for Daylight savings timeAs noted below, I have five of these clocks. Of these, only one updates automatically for the changes between standard and daylight time -- the other ones must be (laboriously) reset manually. And the timekeeping accuracy is marginal -- they drift off by two or three minutes over the course of several months.I don't know how this company stays in business. Had I known how worthless these clocks would be I would have chosen a straight clock with no mystery electronics that at least would be easy to reset and would keep more accurate time. I am in Los Angeles and should be in range of whatever radio signal these clocks claim to rely on. I definitely recommend against purchasing them.Update Sept. 24, 2022: I am lowering the rating to one star. Only one of the five clocks is keeping accurate time (i.e., synchronizing with WWV). The others are wandering off to inaccurate times -- some fast, some slow, none correct. Obviously the manufacturer figures that the inherent accuracy of the clock mechanism does not matter if it is continuously correcting. This logic fails when no correction happens.It's a fine idea but the execution is completely flawed. Buy a regular clock that keeps accurate time -- you'll be happier.Update Nov. 9 2021: As in the last update, only one of the clocks updated at the change to standard time. I replaced the battery in all the others, which caused each of them to "reset to midnight." Now, on the third day, they still have not set themselves to the time signal from WWV.The clocks are in a small wood-frame house. Half are on walls facing south, the rest on walls facing east (which would be the direction of Colorado from here). It was the east-facing clock that properly reset.At this point, I would say that customers should look for a plain old clock if they are going to have to set the time manually anyway. Doing so on these units is cumbersome and time-consuming, whereas a conventional clock can be set in about 15 seconds.These would be great if they actually worked, but they don't.Update: I have 5 of these clocks in my house. When daylight saving time went into effect last Sunday, 1 of the 5 made the change. The other 4 are still on standard time. The manufacturer claims they will fix themselves in 3 to 5 days. This is not very helpful to me. I have docked two stars as a consequence.Original review:I was intrigued by the idea of a self-setting "atomic" clock so I bought one of these. The directions are a little vague about how the unit starts itself up.When I first put the single AA battery in, the clock came to life and the hands proceeds to make a fast march around the dial. I figured this meant that the clock was going to "phone home" right then and set itself to the current time, but no. The clock went dormant after this initial cycle.The instructions say that the clock sets itself overnight, so I hung it on the wall to see what would happen. The next morning, lo and behold, the second hand was ticking and the clock was displaying the correct time. So somehow it managed to connect to the Bureau of Standards time signal and set itself.I liked it so well that I ordered a second one, which is now hanging in a different room. This one took two nights to synchronize itself with the reference time signal, but it is also running properly now.I think this is a very slick idea, and I like having a normal looking round clock face rather than the intricate and complex digital faces that most "atomic" clocks seem to favor. It is certainly reasonably priced. As long as it keeps working as well as it is now I will be happy.

I have a love/hate relationship with these atomic clocks from LA CROSSE. I must have gone through a dozen of them.The good:They keep accurate time. You cannot get more accurate than a radio controlled clock. The newer model is called ATOMIC CLOCK, the older model is called RADIO CONTROLLED (see picture). I am a day-trader and I need the accuracy.The bad:1. LA CROSSE clocks tick loud enough to hear. I don't like audible clocks. BRAUN clocks don't tick and they are accurate. I love them, but they have their own shortcomings (I don't know if I have a review for them on Amazon.)2. An ordinary battery lasts only about 6 months. The manual says that Alkaline batteries last for two years. I must try it--I don't stock alkaline batteries but it might be worth the extra cost if it lasts 4 times as long.The Ugly:Pay attention. I am writing this for your benefit. If you think you will pop in a cell and have the clock do the rest, you have another think coming. You have to follow a ritual (for several days sometimes) to get them to work.1. Start with a brand-new alkaline battery. It's worth the cost.2. Plug in the battery. The clock will come alive--one or both hands will start moving. Usually they will move and stop at the 12 o'clock position (or sometimes the 4 o'clock position.) There it will wait till it can capture a radio signal from Radio Station WWVB, in Fort Collins, CO. My signal is notoriously feeble and I have to place the clock upstairs till it catches the signal, sometimes a couple of nights later.The old clocks would stay at the 12 o'clock position until it captured the radio signal (as shown in the picture). But that is unsettling. So, the company redesigned the capture ritual in the newer clocks. If it cannot capture the signal in the first ten minutes, it will start moving WITH THE WRONG TIME. DO NOT ATTEMPT TO RESET THE CLOCK TO THE CORRECT TIME. Give it time, sometimes as long as 5 nights. Both situations are shown in the picture.3. Once the clock latches onto the signal, it will not let go. You can now place it anywhere in the house. But wait! There is a caveat. The clock will adjust the time to the time-zone you will set by pushing one of four buttons PT/MT/CT/ET on the back of the clock. You push the time-zone button as soon as you insert the battery. Otherwise, you get the time from another time zone. You then have to push the right time-zone button. No big deal, but it's a nuisance. The newer clocks have a slider instead of push buttons and the slider stays in place. I like that. The old clocks had Daylight Savings Time programmed in by default, but the newer ones have a mechanical slider switch to set the DST.When daylight savings occurs, the clock will automatically reset itself. BUT, the next day or so, it will go berserk till it can recapture the revised signal. The NIST signal from Colorado is notoriously weak. There is nothing you or the company can do about it. It is recommended that you stay 6 feet away from electrical equipment (cordless phones, routers, TVs, microwaves, baby monitors, etc.) In my experience, once the clock latches onto a signal, it will not let go. So, stay away from noise sources when it is in capture mode. Then you can place it (almost) anywhere you like.Why do I put up with the startup ritual of atomic clocks? Because I'm a day-trader and I need the accuracy. Also, from now on I will stock high-powered alkaline batteries and see it it makes a difference. If you live in a radio hole, you can push the SET button, and use the clock as a regular clock. But the protocol for setting it is not straight-forward and I have never had to use it.