---
product_id: 36628012
title: "MARATHON Slim Jumbo Atomic Wall Clock, Walnut Finish - Large, 15-Inch Display - Alarm, AM/PM or 24-Hour Time, Eight Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included"
brand: "marathon"
price: "€ 14.72"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.es/products/36628012-marathon-slim-jumbo-atomic-wall-clock-walnut-finish-large-15
store_origin: ES
region: Spain
---

# 15-Inch Display Temp & Humidity Self-Setting MARATHON Slim Jumbo Atomic Wall Clock, Walnut Finish - Large, 15-Inch Display - Alarm, AM/PM or 24-Hour Time, Eight Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included

**Brand:** marathon
**Price:** € 14.72
**Availability:** ✅ In Stock

## Summary

> ⏰ Time to Elevate Your Space!

## Quick Answers

- **What is this?** MARATHON Slim Jumbo Atomic Wall Clock, Walnut Finish - Large, 15-Inch Display - Alarm, AM/PM or 24-Hour Time, Eight Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included by marathon
- **How much does it cost?** € 14.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/36628012-marathon-slim-jumbo-atomic-wall-clock-walnut-finish-large-15)

## Best For

- marathon enthusiasts

## Why This Product

- Trusted marathon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Stay Informed:** Displays indoor temperature and humidity for a comfortable environment.
- • **Alarm Functionality:** Built-in alarm ensures you never miss a beat.
- • **Multiple Time Zones:** Easily switch between eight time zones for global awareness.
- • **Stylish & Functional:** Contemporary walnut finish complements any home office decor.
- • **Time is on Your Side:** Syncs automatically with NIST Atomic Clock for precise timekeeping.

## Overview

The MARATHONSlim Jumbo Atomic Wall Clock combines style and functionality with its large 15-inch display, self-setting technology, and features like temperature and humidity monitoring. Perfect for any home office, this clock is powered by four AA batteries (included) and offers the convenience of multiple time zones.

## Description

Full description not available

## Features

- 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).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 850 Grams |
| Item Dimensions W x H | 14.5"W x 9"H |
| Mounting Type | Wall Mount |
| Number of Batteries | 4 AA batteries required. (included) |
| Watch Movement | Automatic |
| Operation Mode | Atomic |
| Alarm Clock | Yes |
| Power Source | Battery Powered |
| Indoor Outdoor Usage | Indoor |
| Batteries are Included | Yes |
| Display Type | Digital |
| Special Features | Temperature Display, Humidity Display |
| Theme | Contemporary |
| Shape | Rectangular |
| Style | Contemporary |
| Room Type | Home Office |
| Color | Walnut Finish |
| Frame Material | Wood |

## Product Details

- **Brand:** MARATHON
- **Color:** Walnut Finish
- **Display Type:** Digital
- **Style:** Contemporary
- **Special Feature:** Humidity Display, Temperature Display
- **Product Dimensions:** 14.5"W x 9"H
- **Power Source:** Battery Powered
- **Room Type:** Home Office
- **Indoor/Outdoor Usage:** Indoor
- **Theme:** Contemporary

## Images

![MARATHON Slim Jumbo Atomic Wall Clock, Walnut Finish - Large, 15-Inch Display - Alarm, AM/PM or 24-Hour Time, Eight Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included - Image 1](https://m.media-amazon.com/images/I/61U2QJCah8L.jpg)
![MARATHON Slim Jumbo Atomic Wall Clock, Walnut Finish - Large, 15-Inch Display - Alarm, AM/PM or 24-Hour Time, Eight Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included - Image 2](https://m.media-amazon.com/images/I/71W-15ciz+L.jpg)
![MARATHON Slim Jumbo Atomic Wall Clock, Walnut Finish - Large, 15-Inch Display - Alarm, AM/PM or 24-Hour Time, Eight Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included - Image 3](https://m.media-amazon.com/images/I/71yKJU3HD5L.jpg)
![MARATHON Slim Jumbo Atomic Wall Clock, Walnut Finish - Large, 15-Inch Display - Alarm, AM/PM or 24-Hour Time, Eight Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included - Image 4](https://m.media-amazon.com/images/I/71Cl2WwGDeL.jpg)
![MARATHON Slim Jumbo Atomic Wall Clock, Walnut Finish - Large, 15-Inch Display - Alarm, AM/PM or 24-Hour Time, Eight Time Zones, Indoor Temperature & Humidity - Four AA Batteries Included - Image 5](https://m.media-amazon.com/images/I/71lnoLFcW0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great automatic clock
*by J***B on May 12, 2025*

Inserted batteries and within a couple of hours the clock had set itself to the proper time zone and time.Easly to see anywhere in the room.

### ⭐⭐⭐⭐⭐ Great quality clock
*by M***3 on May 11, 2025*

If instructions followed, it's an amazing clock that keeps accurate time. Enjoy the size of the display.

### ⭐⭐⭐⭐⭐ MARATHON CL030062WD Slim-Jumbo Atomic Digital Clock
*by N***Y on September 27, 2017*

Received on 9/15/17Had to test this clock for a while and sure enough set itself!But last night had a fan on all night, about 3ft. below clock!As I am quite familiar with reception issues with these Atomic clocksI new that it most likely would not set itself.Other clocks I have show the receive indicator for a few days before it turns off after no signal for that time period.As I had wanted, the signal indicator was off with DST and on when it received an update.That way you know that it was not updated! If I want to improve reception the fanwill be off.I can not really see a need for any larger time digits than these...they are big!If you need a super large display you could use a computer with or tablet w/app and MHL/HDMI connected input. Do they make a 100 foot screen?All that sillyness, anyway, the humidity seems to show 3% high... or my other humidity gauges are 3% low!Not that I will need to use the alarm...it is loud! Can they not put a volume control in!I have modified many clocks to reduce the level! Some I never even use the alarm after but it is less noisy when setting up! Not a big issue w/this one!Temp reading is close to my other devices!Can't speak for battery life. I think MARATHON claims about 8 months.Oh! One last thing! This was used - very good condition item!Could not find anything wrong...it is indeed in very good condition!It was shipped in another box and packaged well!Would buy another for that price! Only $20.00Now where is my 6 volt AC adapter...have to try a USB 5 volt...that might work too!GREAT CLOCK! THANKS MARATHON and AMAZON6/24/18 just an update still working great...and it does update almost everyday even w/fan on. LOVE IT!9/30/19 Update just checked and found that the the batteries were replace on 9/15/2018!Still do not use the alarm but looks like good battery life. If I modifiy and use an AC adapter I guess I wouldnot have to replace batteries in maybe 5 or 10 years! That would be Super!LOVE THIS CLOCK MARATHON!Note: This review has been edit again to make more sense. Best of luck everyone!!!3/06/2023 Happened to find this old review and had to add more.Good battery life so never DYI to AC power yet.The clock had been running a little fast if no update. So I modified and added a trimmer capacitor. Was able to get excellent accuracy over time and adjustment. Great because I moved and the location in the living room is terrible for receiving any updates on any device.DST this weekend so may have to set myself.Still working great!!!Just ordered a similar clock on Amazon but that has temp and humidity for both inside and outside. Hope that works just as good. Will review it soon!!! Thanks again AMAZON!

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-22*