Slim Atomic Wall Clock

We've had our old wall clock for YEARS but everything has it's life time and it finally gave up about four months ago (took me a while to write a review:)). We decided to try a new brand and zoomed in on a Marathon brand. So far, happy with functionality and features we were looking for: large numbers, indoor and outdoor temps, week days displaying etc. We're pleasantly surprised with the fact that, despite the overall size, all numbers are big enough in order to be seen from at least 7-8 feet. Will update in 6 months but, most likely, would recommend to others.

I love these large display wall clocks with satellite linked time automatically adjusted once set. This one includes an outdoor temperature sensor which is easy to set up and link with the clock. Displays time, date, indoor and outdoor temperature and can easily be read from across a large room. I have had one of these from the close out of the old Radio Shack but this one is a big improvement.

Simple and stylish. Can't think of any better clock than this. Pros: 1) Stylish & Large display 2) Clear & Sharp display, larger viewing angle 3) Accurate indoor and outdoor temperature 4) Radio controlled clock works perfectly (Unless like my previous Ambient Weather) 5) Excellent build quality Suggestion /Improvements: 1) Get rid of alarm clock feature, I can't think of a reason why someone would want to use in this age of cellphones 2) Automatic back-lit upon dark. Back-lit display to be very faint and to use batteries rather than AC

I bought this clock to replace a similarly-featured La Crosse Technology clock that died after 15 years' of service. I like this clock since it has a smaller surrounding frame and bigger clock display area. The calendar and temperature displays are easier to read than on my old La Crosse clock. However, having just gone through the DST to Standard Time transition, this clock DID NOT automatically change to Standard Time. I had to manually turn off the DST feature to get the correct time. My old La Crosse clock and another La Crosse clock I now have automatically did the DST to Standard Time transition without any manual intervention. Had the Marathon clock automatically handled the DST to Standard Time transition, I would have given it a 5-star rating.

Love this clock! Our old atomic clock finally broke after 20 years or more of having it. We ordered this one because it has a more modern look and the large display numbers really help when trying to catch a glimpse of the temp outside on your way out the door. Setup was easy, but we did have to let it sit overnight to let it sync up with NIST (not sure if right acronym). For those that like the temp, time and moon phase all at a glance, this clock is for you!

Bought the Marathon Clock to replace an old analog clock that expired. The analog clock included gear-driven day, and date wheels but the DAY AND DATE were NEVER CORRECT! Took the Marathon Clock out of the box, inserted the batteries and mounted the outside sensor outside the kitchen wall. Never touched it since and the time, date, indoor and outdoor temperature are perfectly accurate! Good "clock"!!!

Over the years, we've had many Atomic clocks with outdoor temp - but without a doubt this is the best one! It has the clearest display, able to read even with dim lighting. Large fonts (I'm about 15 feet away, and can read even the smallest part without trouble - temps at bottom). Long battery life (out lasts our others). And the outdoor temp transmitter works all the time (our others would occasionally disconnect - not sure why). Hopefully they will keep making these, in case I ever need another!

Clock is great, but it gains seconds every few days. I synced the clock with an internet-sourced clock. Several days later it was two seconds faster. A few weeks later it’s now 20 seconds ahead of the internet sync’d clock. Being in mid-Pacific, I don’t get the atomic sync so keeping good time relies on the clock itself. Will be looking for alternatives.

Buen producto, entrega en tiempo todo bien

We'd actually bought it for a relative, but they didn't want it, and so we kept it. We had a previous LARGE DISPLAY clock inherited from a different relative, but this one was bigger and had more more information. The display is crisp and HUGE, meaning you can read it across a sizeable room. The update of the time from shortwave radio signals works well for us, and the clock is always accurate to the second. The indoor and outdoor temperature feature is also great. The clock comes with a wireless outdoor temperature sensor.

Everything works well except the outside temp sensor. Don’t know why but it sometimes gives a very loud warning alarm. Just gave up using that sensor. But the clock is good.

The clock is attractive enough to hang on the kitchen wall. The display is large with solid contrast making it easy to read, and the indoor/outdoor temperature displays are very useful. We also like the accuracy and the fact that we do not need to set it, not even at Daylight Savings Time. The batteries have lasted almost a full year now with no problems.

I bought two of these to replace two two similar clocks, from another manufacturer, that I’ve had for 15 years and the outdoor temperature transmitters died. I set up the first clock and it synchronized with the outdoor temperature and the Boulder time signal within a couple of minutes. The second one took a day and a half to synchronize the time and date. Strangely it didn’t synchronize overnight and I was preparing to return it for a replacement. But it must have heard me because unexpectedly it synchronized in the middle of the day. So other than the frustration of waiting longer than it should normally take for setup to be complete, I’m fairly happy. My only other complaint is that this “Canadian” designed product has an outdoor temperature sensor range of -20 C. C’mon! I live in Manitoba and in the winter we can go weeks at a time where the temperature never warms above -20. Also, on warm days, I find that the outdoor temperature reading is high by 2 of more degrees Celsius.