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Marathon Slim Jumbo Atomic Wall Clock, Black - Large 15-Inch Display, AM/PM or 24-Hour Time Format, 4 Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included

4.5 4.5 out of 5 stars 2,190 ratings

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Black

About this item

  • SELF-SETTING, SELF-ADJUSTING CLOCK - Simply insert the batteries provided & the Marathon Slim Jumbo Atomic Wall Clock will synchronize to the correct time using radio frequencies from NIST’s Colorado Atomic Clock (only functions in N. America).
  • LARGE DISPLAY - Our easy-to-read, 15-inch display and the sleek, contemporary design make this beautiful clock ideal for your home, office, school, or church. Easily hang it on the wall or place it on a table using the sturdy, fold-out stand.
  • MULTIPLE MODES - Choose from three different displays: AM/PM or 24-hour format; the month, weekday, and date; or the indoor temperature in Celsius or Fahrenheit, plus humidity. Language can be displayed in English, French, or Spanish.
  • ALARM WITH SNOOZE - The Slim Jumbo Atomic Wall Clock includes an easy-to-set alarm with a convenient snooze function, which runs in five-minute intervals.
  • ADJUSTABLE TIME ZONES - Easily select your time zone and set your Daylight Savings Time preference to on or off.
  • MARATHON - A family company that has been producing timing instruments for over 80 years. Our uncompromising quest for technical excellence allows us to produce the most advanced clock systems with the experience that our long tradition offers.

Customer ratings by feature

Easy to read
4.7 4.7
Easy to use
4.6 4.6
Giftable
4.5 4.5
Battery life
4.4 4.4

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Color: Black
Mechanism: Atomic
Special Features: Snooze
Special Features: Temperature Display
Display Type: Digital
Room Type: Home Office
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Product Description

Marathon Watch

Marathon Clocks

Marathon Clocks

Marathon Clocks

Marathon

Sleek, Easy-To-Read Display

Modern design elements include a brushed steel effect frame and large numbers for easy viewing.

Multiple Modes

Our clocks offer various display options to suit your lifestyle: AM/FM or 24-hour time, a full calendar, the indoor temperature, and more.

Self-Setting

Marathon atomic clocks eliminate the need to manually input the time and date. Simply insert the batteries provided and it will synchronize.

Adjustable Time Zones

Choose from up to eight North American time zones—a worldwide exclusive Marathon clock feature: Pacific, Mountain, Central, Eastern, Atlantic, Newfoundland, Alaska, and Hawaii standard time.

Marathon Clocks
Marathon Clocks Marathon Clocks Marathon Clocks Marathon Clocks Marathon Clocks
Atomic Wall Clock Slim Atomic Wall Clock Slim Jumbo Atomic Wall Clock Slim Jumbo Atomic Wall Clock Jumbo Panoramic Atomic Wall Clock
Customer Reviews
4.5 out of 5 stars
6,311
4.5 out of 5 stars
2,109
4.5 out of 5 stars
2,190
4.4 out of 5 stars
238
4.2 out of 5 stars
55
Size 9 x 6 inch 9 x 8 inch 15 x 9 inch 15 x 9 inch 17 x 9 inch
Indoor/Outdoor Temperature
Humidity
Time Zones 8 7 4 7 8
Built-in Table Stand
Full Calendar

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Marathon

Marathon Slim Jumbo Atomic Wall Clock, Black - Large 15-Inch Display, AM/PM or 24-Hour Time Format, 4 Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included


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This Item
Marathon Slim Jumbo Atomic Wall Clock, Black - Large 15-Inch Display, AM/PM or 24-Hour Time Format, 4 Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included
MARATHON Marathon Slim Jumbo Atomic Wall Clock, Black - Large 15-Inch Display, AM/PM or 24-Hour Time Format, 4 Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included
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Details
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Added to Cart
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Price$59.99$39.99$79.99$53.99$59.99
Delivery
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Customer Ratings
Easy to read
4.7
4.7
4.2
4.7
4.5
5.0
Accuracy
4.3
4.2
4.2
4.2
4.1
3.6
Giftable
4.5
3.9
4.3
4.2
3.3
Value for money
4.1
4.2
3.3
3.5
3.9
Sold By
The Clock Shop - Sharp
Xflyee LLC
LFF Direct
LFF Direct
OLF Store
material
Plastic
Plastic
Plastic
shape
Rectangular
Rectangular
Rectangular
Rectangular
Rectangular
mounting type
Wall Mount
Wall Mount
Wall Mount
Wall Mount/Tabletop
Wall Mount
Wall Mount, Tabletop
operation mode
Atomic
Atomic
Atomic
Atomic
Atomic
Atomic
signal format
Digital
Digital
Digital
Digital
Digital
Digital
style
Contemporary
Contemporary
Classic
Classic
Modern
watch movement type
Automatic
Automatic
Automatic
Automatic
Automatic

Customer reviews

4.5 out of 5 stars
4.5 out of 5
2,190 global ratings

Customers say

Customers like the readability, size and display of the clock. For example, they mention that it's very clear to read from across the room, has large digits and that it looks good on the wall. They appreciate the ease of use, saying that it plugs and plays. Opinions are mixed on accuracy, quality, and value.

AI-generated from the text of customer reviews

195 customers mention195 positive0 negative

Customers find the readability of the clock to be very clear. They mention that the large digital numbers make it easy to read from a distance, and the letters are big and clear. Some say that the LCD display is sharp and clear, and that the ability to quickly glance at it in order to check the time is great.

"...on the wall, nice walnut frame, super large numbers make it easy to read from a distance, and I love seeing the temp and humidity...." Read more

"I chose the Marathon Jumbo Digital Wall Clock for its big digital time display with time to the second...." Read more

"...The clock itself is very easy to read,large numbers...easy to set manually if you have the same problem as I do an is just overall a very nice clock...." Read more

"I love this clock. It’s large, simple, and easy to read...." Read more

177 customers mention168 positive9 negative

Customers find the size of the numerals on the clock to be very large. They say the numbers are large enough for someone near sighted to read. Customers also mention that the display is large enough to be read from a distance.

"...Looks very nice on the wall, nice walnut frame, super large numbers make it easy to read from a distance, and I love seeing the temp and..." Read more

"...In addition to time displayed in large digits, smaller digits include date, day, and indoor temperature and humidity*..." Read more

"...The clock itself is very easy to read,large numbers...easy to set manually if you have the same problem as I do an is just overall a very nice clock...." Read more

"...On the plus side: the clock digits are quite large and I can see them from the other end of the house; the temperature and humidity..." Read more

133 customers mention130 positive3 negative

Customers are satisfied with the display of the clock. They mention that it is nice and bold, with large digits. They also describe it as a minimalist and functional looking clock with a walnut frame. Customers also appreciate the graphic reminder of the date and the faux wood sticker finish for the frame.

"...Looks very nice on the wall, nice walnut frame, super large numbers make it easy to read from a distance, and I love seeing the temp and..." Read more

"...Reliable readings , easy, pleasing to the eyes, great for the price." Read more

"...a big deal though as they still seem to keep pretty good time...they look nice and I am happy with them...." Read more

"...overall, this is a minimalist/functional looking clock and at a much more reasonable price compared to the jumbo...." Read more

114 customers mention90 positive24 negative

Customers find the clock easy to set up and use. They say it's simple and easy to read. Customers also mention that it'll auto set everything once set up.

"Have had this clock for a while in the office. Reliable readings , easy, pleasing to the eyes, great for the price." Read more

"...The clock itself is very easy to read,large numbers...easy to set manually if you have the same problem as I do an is just overall a very nice clock...." Read more

"...Well setting it up wasn't too bad and reasonably straight froward, and all worked as expected...." Read more

"...I would not buy this unit for the alarm feature. Too cumbersome to set; requires both front and rear panel buttons..." Read more

107 customers mention76 positive31 negative

Customers like the performance of the atomic clock. They mention that it works well for daytime and is reliable. Some say that the clock functioned properly for approximately 5 months, but then it went nuts. Overall, most are satisfied with the performance and durability of the product.

"...THANKS MARATHON and AMAZON6/24/18 just an update still working great...and it does update almost everyday even w/fan on. LOVE IT!..." Read more

"...UPDATE: I've now owned this for over 5 years, and it still works great, minus the humidity issue noted above, which still irritates me...." Read more

"...I got this one in January, and in early July, it stopped working properly. It just went off by several hours for no explained reason...." Read more

"...Otherwise it works great! I love that it automatically sets the time based on your location/time zone." Read more

294 customers mention187 positive107 negative

Customers are mixed about the accuracy of the clock. Some mention that it's very accurate and easy to read in the daytime, while others say that it had not set properly and the time zone was not correct.

"Have had this clock for a while in the office. Reliable readings , easy, pleasing to the eyes, great for the price." Read more

"...Two Small Gripes:* Upon installing the batteries, would not manually synchronize with the Atomic Clock as expected from the start-up..." Read more

"...to want to update...not a big deal though as they still seem to keep pretty good time...they look nice and I am happy with them...." Read more

"...So I modified and added a trimmer capacitor. Was able to get excellent accuracy over time and adjustment...." Read more

77 customers mention53 positive24 negative

Customers are mixed about the quality of the clock. Some mention it's excellent, well built, and reliable. However, others say that it'll go nuts and never update the time.

"...Could not find anything wrong...it is indeed in very good condition!..." Read more

"...Engineering seems to be good but a few locales may be blocked from the signal or have too much interference...." Read more

"...I have bought two different types now and neither one will update the time by themselves...not sure if my house is haunted or lined with kryptonite..." Read more

"...and I recommend this clock to anyone looking for simple setup and reliability...." Read more

70 customers mention27 positive43 negative

Customers are mixed about the value of the clock. Some mention that it's worth the price, while others say that it sucks for the amount of money they spent on it. The size, quality and features of the product are worth the money. However, some customers feel that it is a little pricey for the size and a waste of money.

"...The price is steep but these things either work or they don't, and they last for decades...." Read more

"...Reliable readings , easy, pleasing to the eyes, great for the price." Read more

"...the best clock my money could buy but instead purchased a useless product that is simply un able to do it's job at keeping the time...." Read more

"...At this point I have no choice but to throw it away - what a waste of money!" Read more

Cannot disable automatic update
3 Stars
Cannot disable automatic update
I purchased this wall clock 2 years ago, in January of 2020. Originally I enjoyed the large characters and humidity/temperature functions, which was one of the reasons I was willing to spend 80$ on a simple clock for the kitchen. As somebody that is nearly always a little late to meetings and appointments, I have a habit of putting all of my clocks ahead by 5 minutes, including the one in my car. This has worked for me for years, as I rush to leave the house at 8:15am when it is really 8:10 for example, and end up right on time. Anyway, after ordering this wall clock, which was to be my primary time piece as I make breakfast and get ready for work, I adjusted all the settings to my preference, including disabling the automatic atomic clock adjustment feature. I set the time forward 5 minutes, punch in the date, and all good. Right? Not quite. A month later, I walk into work 5 minutes late, and checking my cellphone, I see that this is really the case. What the hell? The next day the same thing happens, and I realize it is the WALL CLOCK returning to "standard" time. I look at the display, and sure enough the flashing icon for atomic reset is happily on. I flip it over, press the buttons on the back which are clearly marked, and after holding down the right button for 3 seconds, I disable the atomic reset function. The icon disappears, I set the time forward by 5 minutes, and remount on the wall. The next day, I double check against my cellphone, and we are back on track. A few weeks later, I am again late for work by about 5 minutes. Seething in anger during my lunch break at being late for no good reason, I drive home and sure enough, the icon for automatic time adjustment is back on, indicating the clock is actively adjusting my time to the atomic clock. I pull this piece of garbage off the wall and again disable this "feature." Now I have an 80 dollar wall clock that very accurately tells the time, even if I don't want to know. After owning this piece of hardward for 2 years, it is impossible to predict when it will reset itself. This year (2021) it went for over 6 months without incident, and then yesterday I noticed the atomic clock feature had reactivated itself, prompting me to write this review. I have moved it to the computer room which is less important, and purchased a 16 dollar unremarkable wall clock for the kitchen, which has no ability to do anything except obey the orders I punched in when I first mounted it. I suppose most people will use the automatic time feature because that is something they consider a valuable feature, but to me I can't understand why it will not remain off. It bothers me that I am way past the return window, and this bug is technically not great enough to cause a recall or anything. Other than this particular flaw, the clock itself is fine, and would make a great addition to a household that is always exactly on time. For me, I'm going to stick with dumb analog devices from now on.
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Top reviews from the United States

Reviewed in the United States on August 9, 2019
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5.0 out of 5 stars Nice Price Point for a Large Format Clock--esp if you hate shifting the hours on daylight savings (coming up 11/6/2016)
Reviewed in the United States on October 26, 2016
UPDATE:
After 48 hours, the time has finally adjusted properly. All is great!

Pic 1: After 24 hours, the time had not set properly--the time zone was not correct (it says "E" instead of "P"). In this pic you can see the dimension (clock is 9 inches high, and the time letters take up 4.5 inches of that)
Pic 2: After 48 hours, with some nice hand holding from support at Marathon, the clock did set itself properly. I've taken a pic with one of the jumbo clocks we own.
Pic 3: It FEELS slimmer, but is it? Here is a pic of the slim and the jumbo from the edge angle. (It's only slightly slimmer, but somehow it feels a lot slimmer than it really is)

***

I own five Marathon clocks. Most of them Jumbo sized. My favorite configuration is just like this slim one: time in huge letters (with seconds), temperature, date, AND humidity. it can get very dry in higher altitude, and it's nice to have a reminder to turn on the humidifier in my bedroom.

overall, the best thing is marathon is a good company. they've been making nice, atomic clocks for awhile. after purchasing from amazon, they send a follow up email--and this time, i actually wrote back to let them know the atomic signal has not set the clock after 24 hours. they referred me to an actual person with a phone number--and he and i were chatting in a few minutes. he was very reassuring, and sure enough--after another day with the clock near a window, everything set properly. the ONLY time i had to return a clock was when I bought a jumbo marathon for hawaii. let it be known, that clock signals from colorado do not reach hawaii. :)

as for the product, i love marathon's large number, atomic clocks. mainly, i used to hate dismounting every clock in the house twice a year when the time changes happened. so this solved that issue. the only thing that had been holding me back from buying more is the high price point of the jumbo (~$80). so when i saw the slim-jumbo at $49.95, i dove in.

some nice touches are the temperatures can be toggled F or C. and the dates come in two formats ("european" where the day comes first, or "american" where the month comes first). if you for some reason want to set the clock manually--just hold down the mode button in front, and use the snooze/alarm to increase or decrease things. i think you have to also use one of the button on the back (12/24) to change the East, Mountain, Pacific designations when that is blinking.

i had hopes that the very light background would make this easier to see in my dark bedroom. this still has not improved--it's the same as the old jumbo. but the tech support guy did mention they're working on a backlit one...

overall, this is a minimalist/functional looking clock and at a much more reasonable price compared to the jumbo.

PS, i did not receive this product free, discounted, or as part of vine. i paid full price, i needed a clock like this, and i chose independently amongst many competitor options.
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77 people found this helpful
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Top reviews from other countries

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Al Shaban
5.0 out of 5 stars Very nice looking and very clear.
Reviewed in Canada on October 23, 2023
Doll Lover
5.0 out of 5 stars Exactly what we wanted !
Reviewed in Canada on August 1, 2023
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JoAnne Drouillard
5.0 out of 5 stars Easy to see
Reviewed in Canada on May 31, 2023
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Steve Etheart
5.0 out of 5 stars Écran large
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Steve Etheart
5.0 out of 5 stars Écran large
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Horloge de salle de bain
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Kathrine
5.0 out of 5 stars Easy to read and use
Reviewed in Australia on June 13, 2019