







The UltrAtomic wall clock features the most accurate atomic movement on the market. Like a traditional atomic clock, this clock automatically sets itself and updates for Daylight saving time. However, this clock is equipped with two antennas that allows it to work in the nosiest, hostile electronic environments such as busy office buildings, hospitals, or other institutions. With this enhanced reception UltrAtomic clocks increases the WWVB signal reliability and penetration. No more worrying about changing out batteries every year, with its additional battery compartment you’ll keep your UltrAtomic clock running longer. This feature keeps the batteries in your clock running for approximately 3 to 5 years before you would need to replace. Optional ECO-MODE feature is a battery saving feature that will pause the second hand at 12:00 during the hours of 11:00pm-5:00am. Wrapped in a modern 14″ stainless steel frame with a plastic shatter-proof lens, this clock attracts in a commercial or residential space.
[5-YEAR BATTERY LIFE] – A quality set of 4 “C” batteries will keep the clock running for up to 5 years – an impressive feat offering unparalleled convenience and peace of mind
[ROBUST RECEPTION] Dual antenna provides best reception to WWVB time broadcast, even in heaviest electronic traffic areas such as hospitals or commercial buildings
[CUSTOM TIME SET] Select from 4 USA time zones or Customize to any World Time
[METAL FRAME] Stainless steel polished silver frame and shatter-proof lens
[ECO-MODE] Optional Eco-mode feature also saves battery life; Q-MODE (Quartz mode) sets to any manual hour
9 reviews for La Crosse Technology 404-1235UA-PL UltrAtomic 14 inch Stainless Steel Wall Clock, Shatterproof Lens, Silver
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$4.99

pnt85260 –
Worth the Investment
Set up was easy and quick having only to wait a few minutes before receiving the WWVB signal from the National Institute of Standards and Technology (NIST) in Fort Collins, CO. The clock is clear and visible from a distance. It is well made from stainless steel and doesnt look or feel cheap. Definitely worth the money and investment. I only used two “C” batteries as not to make it to heavy to hang. Clock runs extremely quiet except for a clunk sound every 15 seconds that you can barely hear. It’s been working flawlessly and keeping accurate time. I’m very happy with this clock and recommend it for looks, quality and accuracy.
Amazon Customer –
Precision-made
I absolutely love this clock!I love the brushed metal housing and bezel instead of plastic. It feels substantial and has heft and is not flimsy. The clock is BIG (14″ diameter!) and can be seen easily across the room. It also has standard Arabic numerals and not the dreaded Roman numerals. Don’t know why people are enamored with X’s and I’s when one simple character will suffice (and there’s numbers at all positions… I hate when they leave some or all blank).But my favorite thing about the clock is the really cool precision clockwork and how the hands line up with the dial face properly. That’s always been a weird thing with me. When the second hand is on the 12, the minute hand better be right on top of a minute! And at noon and midnight, ALL THREE hands should be aligned right on the 12! Is it just me???But this clock is dead-on accurate. Since I hung it, I have literally come out and watched the minute hand move exactly 1/4 of the way between minutes every 15 seconds, to be right on top of the proper minute as the second hand reaches the top. You may call it OCD… I call it demanding an accurate clock and this one is.The atomic feature is sweet. As soon as you have the batteries in, it will start to do its thing. Some other review here thought there was something wrong because it sat at the initial preset spot for too long. Having worked with WWV timing signals, I know the clock needs to wait for a very specific time-sync signal that only comes once every so often. If you missed the last one before your clock enters the initial time set, you’ll have to be patient and wait for the next one (or your clock is in a bad radio spot and may have missed the signal altogether). Mine set itself fine within an hour, and is literally in sync with my cell phone time.There are switch settings on the back for daylight savings if your area uses that insane archaic nonsense. There’s also a neat battery-saving feature that disables the second hand at 11:00 PM, and comes back on at 5 or 6 AM (I forget which). The batteries are ‘C’ size (which seems odd these days) and you have the option to put either 2 or 4 batteries in. With 4, you won’t need to change them for a very long time.Another person asked if it “ticked” or made noise. Granted, I don’t have the best hearing, but I can barely hear the second hand ticking when I stand right under it. I sometimes hear the minute hand move its quarter-tic between minutes, but again I have to be right under it. Maybe if you’re really OCD about quiet in your bed at night and have great hearing, you might have issues (I mean with the clock tick… your personal ‘tic’ about ‘ticks’ notwithstanding… I have my own with clock hands but don’t care about the tick!)I like this clock so much I bought another for the kitchen. In a year where I’ve returned a lot of stuff that just wasn’t the quality I felt it should be, I’m really happy with this simple clock that works – and works well – and looks great.
sd –
but I love the clock
My wife hates the aesthetics, but I love the clock. I’m a form follows function guy. In my perception, the primary purpose of a clock to reliably display accurate time, which the La Crosse 404-1235UA clock does.One of the things I like about this clock is the robust electro-mechanical drive mechanism. Many large analog clocks are underpowered by a single AA battery and start losing time when the battery voltage drops just a little from a new voltage near 1.6V (nominal loaded voltage of a new Alkaline battery is 1.5V, but unloaded open circuit it is higher) to the mid 1.4s, which is still good enough for a flashlight, but not enough oomph to drive a large dial analog clock. This clock uses 2 larger capacity C size batteries in series so the voltage is double (1.5×2=3 volts), and you can optionally add another pair in parallel for more amp hours (a bigger tank of the same pressure).Setup was simple. I live on the coast in the Pacific Time zone at the base of a mountain range that obstructs our line toward the transmitting station in Colorado. The clock’s default time zone is PT, so I didn’t need to change any of the default settings. Simply put in new batteries and hung the clock on an interior wall downstairs, not near any windows. When the battery connection was made, the clock mechanism cranked around to 4 PM. About 5 minutes later (after hanging the clock on the wall) it cranked again to the correct time within a second of another La Crosse RCC (radio controlled clock) that I have nearby.I couple of comments on some of the earlier reviews (I read all 6 of them prior to purchase). My clock purchased from Amazon in October 2016 doesn’t have the battery compartment issue or the wall standoff gap mentioned in other reviews. The batteries fit snug and the clock sits flush against the wall. Perhaps La Crosse updated the design? I do concur with accurate and descriptive comments about audible “ticking”, so you wouldn’t want it in your bedroom, but the ticking is minor and not an issue in our dining room.I’ve had several RCC clocks in the past. The newer ones seem to be more reliable than the models I tried in the 90s. I think the LCD models have an advantage in that they don’t need a power-hungry mechanical drive mechanism, but I needed to replace a round analog clock in a prominent location.I did some research and discovered the new Phase Shift Modulation ( NIST aka PM or BPSK ~ Binary-Phase-Shift-Keying) technology, which NIST began transmitting in 2012. My understanding is that PM (or PSK) it somewhat comparable to RS-485 vs RS-232. The phase inversion results in a “differential” signal that is more robust than simple amplitude modulation (AM). PSK is now utilized in many binary radio standards like Bluetooth and Wireless LAN. Sounds good, unfortunately after an extensive web search, this is the only PM clock I found for sale. Fortunately, the La Crosse 404-1235UA clock is well built and seems to be robust.Update, August 2018, about 2 years after my initial 10/2016 purchase: My La Crosse 404-1235UA clock(s) have continued to perform flawlessly. Out of curiosity, I checked the battery voltage. After 22 months of operation each of the 4 Rayovac C cell batteries is reading 1.40 volts. I also purchased a 2nd clock about a year ago, and after 13 months of operation, its Duracell Procell batteries are measuring 1.48 volts.The reason I’m updating my comments is because one of my smaller analog clocks stopped working (not one of the clocks in this review), and since the La Crosse 404-1235UA clocks (I now have 2 of them) have easily been the best clocks I’ve ever owned, I wanted to get something similar, but smaller. I thought by now the market would be dominated by the newer more robust phase shift modulation (PM, or BPSK) signal compared to the legacy pulse width modulation (PWM, based on an amplitude modulation (AM) signal), however the La Crosse 404-1235UA clock is still the only device I can find (at consumer retail pricing) that advertises utilization of the newer PM signaling. The newer PM / BPSK format began broadcasting in 2012.In addition to my newer La Crosse 404-1235UA clocks, I also have a La-Crosse digital clock that as been performing flawlessly for about 5 years, and I think it uses the older PWM / AM signaling. I think the transmitting power was increased when the system was refurbished in 1999, which might explain why the newer clocks are more reliable than the ones I tried in the 1990s, however everything I’ve read indicates the newer PM / PBSK transmitting protocol is significantly more robust than the PWM / AM signaling, plus the mechanical drive mechanism of the La Crosse 404-1235UA is clearly more robust than the underpowered alternatives.In October 2016 I paid $61.76 plus sales tax for my first 404-1235UA. In July 2017 I paid $57.97 plus tax, and today (8/20/2018) Amazon’s price is down to $45.89, which seems like a bargain. As noted above, I think digital clocks that don’t need to physically drive a mechanical mechanism can operate reliably on less power, but I’m still looking for a round analog clock as robust as the La Crosse 404-1235UA but in a smaller size.
Nick –
Accurate and Stylish
This wall clock not only looks great with its sleek stainless steel frame, but it also keeps flawless time. The UltrAtomic feature means no manual adjustments, and unlike my previous atomic clock that occasionally lost the signal, this one stays perfectly synced. It’s easy to read from across the room and completely silent, making it ideal for any space.
Shafiq Bhatti –
It”s fantastic clock
SAUL B. GUILLEN REYES –
Este reloj nunca pierde la señal de la WWV, ya que tiene doble antena y esto lo hace muy bueno para la recepción, excelente producto
Matthew M. –
I love it. Quality materials and design.
Albert –
Excellent product. I purchased the clock a few years ago and it’s still moving the time with accuracy. Easy to operate with no problem at all. I highly recommend it.
Shrek –
Good value for money, big (but not excessive), and bright, clear to see. The self-adjusting mechanism (atomic clock feature) didn’t work for me but the accuracy of the standard mechanism is really good falling behind only about 5 seconds per month which is very, very good.All in all, I’d recommend it and buy it again if I had to.