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La Crosse Technology
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Affordable, Contemporary Clock Automatically Keeps Exact Time - Accurate to the Second!
La Crosse Technology WT-3102B 10" Analog Atomic Clock Wall Clock - Black
La Crosse Technology WT-3102B 10" Analog Atomic Clock Wall Clock - Black
La Crosse Technology WT-3102B 10" Analog Atomic Clock Wall Clock - Black
Item# 19419
Price: Normally $29.99 
Hot Deal $18.75
Free shipping on orders over $175 - See Details


  • Automatically sets to the exact time, accurate to the second
  • Automatically adjusts for daylight savings time
  • Four time zone settings
  • Suitable for indoor or outdoor (dry environments) use

Essential Info

This clock simply couldn't be easier to use. All you have to do is insert an AA battery (sold separately) and press your corresponding time zone button, that's it! The clock receives radio communication from Fort Collins, Colorado, where the exact time signal is continuously broadcast throughout the United States. Time is precisely measured by the Atomic Clock of the US National Institute of Standards and Technology, Time and Frequency Division in Boulder, Colorado, where a team of atomic physicists continually measures time to an accuracy of ten billionths of a second per day. The clock recognizes Pacific Time (PT), Mountain Time (MT), Central Time (CT), Eastern Time (ET), and Fall and Spring daylight savings time adjustments if you are in one of the many contiguous states that change their clocks. It is suitable for indoor use as well as outdoor use in dry environments in a temperature range of 41°F to 131°F.

Please Note: For time zones outside of PT, MT, CT or ET you must manually set the time using the Manual Time set button on the back of the movement.

Hands On Research
At first the clock went to 4 o'clock and stopped. Upon reading the manual, I learned that every even hour is when the clock looks for a signal to set the clock to. Within a couple hours the clock read perfect time and everything was working great.
Justin S. - Smarthome Product Testing


What's Included

  • 1x - 10" Analog Atomic Clock Wall Clock - Black
  • 1x - Owner's Manual
  • Specifications


    Manufacturer:La Crosse Technology
    Manufacturer Product No.:WT-3102B
    Power Requirements:One (1) AA battery
    Operating Voltage:1.25V to 1.75V
    Battery Life:Over one year
    Operating Conditions:41° F to 131° F
    Recognized Time Zones:PT-Pacific Time, MT-Mountain Time, CT-Central Time, ET-Eastern Time
    Communication:Long-wave radio at 60 Hz
    Dimensions:10" Diameter
    Warranty:Manufacturer one (1) year

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: La Crosse Technology, Tel: (888) 211-1923


    43 Ratings
    5 star: 67%  (29)
    4 star: 14%  (6)
    3 star: 5%  (2)
    2 star: 2%  (1)
    1 star: 12%  (5)
    Average Customer Rating
    (43 customer ratings)
    Share your thoughts with other customers
    PHIL -- clovis, CA   1/11/2014
    Great looking clock that takes care of itself. The time displayed is always correct.
    LLEWELLYN -- woodbury, MN   9/3/2013
    It is a clock and it is still keeping time. most important it is quite.
    DAVID N -- ogden, KS   4/18/2013
    perfect item for the kitchen and not having to change it for DST makes it even better.
    JOHN -- lake errock, BC   12/27/2012
    received clock in good time. keeps time silently
    CHARLES L. -- asheville, NC   12/27/2012
    Since it's radio controlled from Ft. Collins, CO, it's always right.
    ROBERT -- frisco, TX   10/6/2012
    Best clock I've purchased. Push one button to set and forget.
    MARIA -- coram, NY   10/5/2012
    great clock . . . so far.
    ALBERT C -- smyrna, GA   4/14/2012
    Takes a day or so to get it to show the right time and during that period you still have to reset it a few times. But is working fine now.
    JEAN M -- kiowa, CO   3/23/2012
    Great clock, very attractive.
    BETSY -- brownsville, PA   12/8/2011
    very problems
    DAVID -- wheaton, IL   12/2/2011
    This clock works extremely well. Insert the battery and it takes care of itself. It's also the quietest analog clock I've come across, absolutely silent. We also have a number of the 14" versions and they work well also. This series of clocks can be a bit fussy about location due to the built-in radio receiver, but once a suitable place is found they work well.
    HAROLD -- lancaster, PA   12/2/2011
    Easy to set up. Works like a charm.
    GWR -- Connecticut   11/17/2011
    Great Clocks! Follow directions, give it 24 hours to aquire the correct time from WWVB and it works like a charm! Depending on your location you MAY have to move the clock to another room to be able to get a good radio signal. Homes with alluminum or steel siding and roofs may not be able to use the automaic set feature of the clock. If the second hand stops moving you probably need to change the battery. I have 2 and plan on a third! Having been through several dicount store clocks in a short period of time - I bought these as a last resort - Glad I did - Love them!
    FRANK -- washington, DC   8/8/2011
    Exactly when I must put my clock in the window to get the time coordinated? Otherwise excellent on price, quality, and speedy service.
    DAVID -- west roxbury, MA   6/11/2011
    It doesn't work. I've tried 3 times to reset to the correct time and it hasn't figured it out yet. I will have to try manual set. But I'm not optomistic that it will keep good time after I set it manually.
    NICKI -- wichita, KS   5/12/2011
    Item was easy to order, cost was reasonable and I received my clocks in a timely manner.
    YAVUZ -- cottekill, NY   4/29/2011
    This clock has a nice face and works very well. I purchased a second one to put it in another of my rooms. I am planning to buy a third one as a present to a friend.
    EUNISSA -- york, PA   4/6/2011
    I chose this clock because I was looking for an inexpensive analog wall clock. To me, it was a bonus to get a radio cotrolled time clock. So far so good. Read the directions! My daughter thought you could just out the batteries in an it would just work:-) Well you have to choose you time zone and it can take upto 24 hours to get set to your time. I had 1 out of 4 clocks that just kept spining its clock hands. I fixed the problem by taking the battery out, waiting a few seconds, then reinserting the battery and starting the configuration all over again. So far so good.
    BOB -- bayfield, CO   4/3/2011
    Excellent product though the directions could have been a little better. What exactly does "face Colorado" mean for a clock? for example.
    THOMAS -- hoboken, NJ   3/18/2011
    This model has a better (more sensitive) receiver than models from a few years ago, and is really great!


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