---
product_id: 59587566
title: "MARATHON Atomic Full Calendar Clock with Extra Large Digits Indoor and Outdoor Temperature"
brand: "marathon"
price: "€ 246.13"
currency: EUR
in_stock: true
reviews_count: 12
url: https://www.desertcart.gr/products/59587566-marathon-atomic-full-calendar-clock-with-extra-large-digits-indoor
store_origin: GR
region: Greece
---

# MARATHON Atomic Full Calendar Clock with Extra Large Digits Indoor and Outdoor Temperature

**Brand:** marathon
**Price:** € 246.13
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** MARATHON Atomic Full Calendar Clock with Extra Large Digits Indoor and Outdoor Temperature by marathon
- **How much does it cost?** € 246.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/59587566-marathon-atomic-full-calendar-clock-with-extra-large-digits-indoor)

## Best For

- marathon enthusiasts

## Why This Product

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

## Description

MARATHON Atomic Full Calendar Clock with Extra Large Digits Indoor and Outdoor Temperature

## Features

- About this item
- MULTI LINGUAL OPTIONS: Days of week and month in 3 languages and user selectable- English, French and Spanish
- HIGHL DEFINITION DISPLAY: Features large, easy to read, 4.5" digits
- 7 TIME ZONES AND 12 OR 24 HOUR DISPLAY OPTIONS: Choose to display the time in 7 different time zones with an option to have the time in 12 or 24 hour formats. Also includes an option to turn Daylight Savings Time on or off.
- TEMPERATURE DISPLAY AND A FREE REFRIGERATOR PROBE: Indoor and outdoor temperature in both Celsius and Fahrenheit. Comes with a bonus refrigerator probe.
- SELF-SETTING/ADJUSTING: Using radio frequencies broadcast from NIST's Colorado Atomic Clock

## Images

![MARATHON Atomic Full Calendar Clock with Extra Large Digits Indoor and Outdoor Temperature - Image 1](https://m.media-amazon.com/images/I/71y7NyPHEfL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐ 







  
  
    Very disapointed...
  

*by A***R on Reviewed in the United States on December 5, 2019*

I love the clock.  It has a great display, its a great size and very easy to read.  I would have given this product 5 stars and recommended it to anyone.  However spending $100 on a clock, I expect it to last quite a while.  My outdoor sensor has been on the fritz for months and now finally just stopped working all togehter.  There are no options to buy just the outdoor sensor and the clock without the outside temperature is kind of useless to me.  So to buy another clock to just get the sensor would be an incredible waste of money.  I would love if Marathon would stand behind their products because this would easily be a 5 star review if my sensor worked properly.

### ⭐⭐ 







  
  
    WWV Time sync does not work properly
  

*by J***D on Reviewed in the United States on November 17, 2018*

I am an advanced class Ham radio operator, and have several atomic clocks in my home. This one was purchased to replace one that I had owned for several years that finally failed.  It hangs on a wall in the exact same place as the one it replaced. I have never had an issue with any of my atomic clocks capturing the WWV signal and remaining in sync after they initial set. The only time any have lost capture with any of them is when I change batteries.  This clock is very attractive and easy to see thanks to its large size.  It does however do a very poor job of capturing the WWV radio signal that sets the time, and even once it does it wont keep in sync for more than 24 hours before it looses sync again.  Once set the time remains accurate even after loss of sync but it bugs me when it looses sync while all my other atomic clocks remain in high spec mode.I have identified two locations in my house where I can move the clock to early in the morning and manually scan in order to get it to sync, but that too is hit and miss.  In reading other reviews of this clock I find others have also experienced poor sync performance as well.  Since this is a primary feature of this clock I would expect better performance.  In my case I am sure it is nothing to do with my home since I have other clocks that sync just fine, and the location where it is installed is the same location where an older atomic clock hung for years and it always kept in sync just fine.If you are a bit OCD asI am and expect things to work as they should then you perhaps should look elsewhere and select a clock that works as it should.  If you don't mind setting it manually, or having to jiggle the handle daily to help it stay in sync then this may be OK.  The remote outside temperature sensor also has issues with staying connected .  I moved the outside unit from the same location where the old one has been for years to a different location much closer to the clock and it now stays connected.

### ⭐⭐⭐⭐⭐ 







  
  
    Reattly BIG display
  

*by R***R on Reviewed in the United States on May 27, 2019*

I love the super-sized display.  It was easier to set up than any other clock/indoor-outdoor thermometer I have had.  I like the feature that if it should "lose" the outdoor sensor I can push a clearly labelled button on back and it will find the sensor.  Because of the nature of the building materials and distance, every indoor/outdoor I have ever owned loses the outdoor sensor occasionally.My wife was a little overwhelmed by the size of the display, so I suggest you consider that in your decision.

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**Shop now:** [https://www.desertcart.gr/products/59587566-marathon-atomic-full-calendar-clock-with-extra-large-digits-indoor](https://www.desertcart.gr/products/59587566-marathon-atomic-full-calendar-clock-with-extra-large-digits-indoor)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-25*