














🕰️ Own your time with precision and style—because every second counts.
The Marathon Slim Jumbo Atomic Wall Clock combines advanced atomic timekeeping with a sleek wood finish and a large, crystal-clear digital display. Featuring automatic synchronization with the NIST atomic clock, it offers seven North American time zones, a full calendar, alarm with snooze, and indoor temperature and humidity monitoring. Designed for modern professionals, its multi-language and multi-format display options ensure effortless readability and seamless integration into any home or office environment.











| ASIN | B07B3XNLJW |
| Alarm Clock | Yes |
| Are Batteries Included | No |
| Batteries | 4 AA batteries required. |
| Best Sellers Rank | #4,431,013 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #13,588 in Wall Clocks |
| Brand | MARATHON |
| Clock Form | Multi Display |
| Color | Brown |
| Customer Reviews | 4.4 4.4 out of 5 stars (316) |
| Date First Available | October 6, 2016 |
| Display Type | Digital |
| Frame Material | Wood |
| Indoor/Outdoor Usage | Indoor |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.26 pounds |
| Item model number | CL030067WD |
| Manufacturer | Marathon |
| Mounting Type | Wall Mount |
| Number of Batteries | 4 AA batteries required. |
| Number of Items | 1 |
| Operation Mode | Atomic |
| Power Source | Battery Powered |
| Product Dimensions | 9.84"W x 8.27"H |
| Room Type | Office |
| Shape | Square |
| Size | Small |
| Style | Modern |
| Theme | Mountain |
| UPC | 063442321355 |
P**H
Fantastic Clock
I searched through MANY atomic clocks to find the right one. This one hit all bases in many ways. First the fonts are big enough to be seen. Most clocks sold are way too big in size and font and non aesthetically overbearing/obnoxious. Secondly most clocks of this ilk come with an outdoor sensor. Those sensors don't last and are cheap. The elements easily kill them. So basically you'll have one side of the clock not showing temp as the sensor is broken. Plus, it's much easier to use your phone to get outside temp. LOL. Third, so the outside temp is replaced with a humidity sensor which is much more useful to your immediate surrounding. Fourth, it's wood tone. So at least some aesthetic to the decor vs. the regular industrial looking black or silver clocks you see on Amazon. Lastly, it's consistently accurate to the second. It quickly grabbed the Atomic clock signal. And additionally, it has auto daylight saving time. No need to readjust during the DST switch. Plus it fully says the name of the day of the week instead of just a 2 letter abbreviation. AND the numbers are CLEAR. Nothing like some of the early photos here. It's is crystal clear LCD from all angles! So they must have improved the panel.
B**W
Great looking clock and easy to setup! Love the display layout.
I bought one for the home office. Liked it so much that I ended up buying another for the master bathroom then another for the living room. The size of the clock can go just about anywhere and slim depth and the 3 available finishes make them attractive. They show the most important data that I desire with the hours and minutes being the largest making it very easy to read from the distance; even easy to see the time in the shower even with the glass enclosure steamed up. The day and the month spelled out are nice and makes it very clear and easy what day of the week it is. The temperature and humidity display are nice and with all of them together of all three clocks are less than a degree apart. The humidity is a bit different with one of them a few points in percent apart but for a clock that is good enough; it gives a good ballpark of what the humidity is in each room. The time is naturally spot on and I find them very sensitive that they get a full strength signal no matter where they are located in the house. I found them to be very easy to set up without using the instructions at all. Love this model of clock, who knows perhaps there will be more purchased in the future?
A**E
worth the money
very nice clock, the display is easy to see and laid out good, great design and color, looks more expensive than it is
T**S
Top-quality, feature-rich wall clock with useful features.
This is a stylish wall clock with incredibly easy-to-read layout and very large time digits visible from any angle. The clock's software basically guides you through the initial setup process. Most of the clock's face surface is occupied by the single LCD panel. An imitation wood frame model of these clocks that I chose also looks attractive. Also, this clock appears to be highly radio signal-sensitive, so it receives the NIST time sync. signals quite well even in some adverse areas where similar clocks exhibited problems picking up this signal. Overall, this clock is highly recommended. It is entirely worth its price.
S**B
Nice clock - easy set up
I've only had this clock for a week or so - but I really like it. Good size for a wall, large time display and I like that it not only displays the date - but the day of the week! It's plastic - like a lot of clocks of this type - and feels kinda cheap but the company emailed me and said there's a 2 year warranty. Set up - I put the batteries in and left it alone - like the instructions say to do - for 10 minutes and it set itself up.
D**1
Found atomic clock signal on first night
This clock has a nice size numbers and text and easily visible. The atomic clock reset did not work when I first pressed the button. After reading the reviews I was a little concerned it would not receive the signal. So I manually set the clock but did so about 5 minutes ahead to make it easy to know if it reset. The next morning I check and it updated to correct atomic time. So it is working well and nicely visible.
A**7
Mixed feelings
Everything about this clock is nice except for the useless humidity gauge. Every humidity reacts somewhat slowly, but this one is REALLY slow in reacting to changing humidity. Also, according to the owner of the company, the plus or minus on this humidity guage is 8. With that kind of accuracy, there is no point in using it.
P**L
Nice clock!
Nice big numbers are easy to read, setting it took a minute to figure out but got it done. It did not set itself to the correct time automatically as indicated but not a dealbreaker for me. Time will tell if it was worth the price but it looks great on the wall of our communications center and the time is always accurate!
A**R
Really happy with this clock. We like the size and the wood trim. The clock has lots of information on the face even at a glance. The display is lots big. Suitable as a replacement from what we did have.
B**E
Easy to read under correct lighting at night display is difficult to read need to have a night light if you want to see it while walking around in the dark. Otherwise it’s a great clock once you set your time zone.
C**J
Great for old, retired folks to keep track of the day of the week. Seems like everyday is Saturday
E**E
glad it works, last one was sent back
S**H
The clock is good and does what it says it supposed to. A back light would have been more convenient to read it in the night.
Trustpilot
2 weeks ago
3 days ago