Sharp

Sharp Atomic Analog 12" Wall Clock

4.3 (3168 reviews)

Sharp Atomic Wall Clock syncs daily with the US Atomic Clock for effortless, always-accurate timekeeping.

$39.99*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Sharp SPC968 Atomic Analog Wall Clock is a 12-inch battery-operated timepiece that takes the guesswork out of keeping accurate time. A built-in WWVB receiver picks up the radio signal broadcast by the National Institute of Standards and Technology from Fort Collins, Colorado, automatically setting and correcting the time each day. This means the clock stays accurate to within one second without any manual adjustment — including automatic daylight saving time changes. It is a practical choice for offices, kitchens, classrooms, and any space where reliable timekeeping matters.

The clock features a brushed silver metal frame and a clean white dial with silver hour markers, giving it a modern look that blends into most environments without drawing undue attention. At just 2.25 pounds, it mounts easily on any wall with basic hardware. The round 12-inch face is large enough to read comfortably from across a standard room, and the analog display offers a familiar, no-fuss interface. Powered by a single AA battery (not included), it operates independently of any power outlet, making placement flexible.

Key Features

ATOMIC ACCURACY: The Atomic clock has a built-in receiver that automatically synchronizes itself with the WWVB radio broadcast by the US Government’s National Institute (NIST) in Fort Collins, Colorado. The Atomic Clock will always be accurate to within one second as it receives daily WWVB updates.

AUTOMATICALLY SETS: Clock resets regularly by radio-control to match the US Atomic Clock in Colorado and adjusts automatically for daylight savings time

BRUSHED SILVER FRAME: Brushed frame adds style and longevity to any decor

BATTERY OPERATED - (Requires 1 x AA batteries - not included)

EASY TO READ - EASY TO USE: Simple, easy to read style fits any decor and is easy to read - perfect for any room in the house: den, office, kitchen, kids room, garage

Specifications

Brand
Sharp
Model
SPC968
Diameter
12 inches
Display Type
Analog
Style
Modern
Operation Mode
Atomic (WWVB Synchronized)
Frame Material
Metal (Brushed Silver)
Dial Color
Silver / White
Shape
Round
Mounting Type
Wall Mount
Power Source
1 x AA Battery (not included)
Item Weight
2.25 Pounds
Dimensions
12"W x 12"H

Pros & Cons

👍 Pros

  • Automatic daily synchronization with the US Atomic Clock ensures time accuracy within one second
  • Adjusts for daylight saving time without any manual intervention
  • Brushed silver metal frame gives it a durable, modern appearance that fits most decor
  • Runs on a single AA battery with no wiring or power outlet needed
  • Simple analog design is immediately readable without squinting at small digital numbers

👎 Cons

  • WWVB signal reception can be unreliable in buildings with thick walls, basements, or areas far from Fort Collins, Colorado
  • Requires manual time setting as a fallback if the atomic signal cannot be received in your location
  • No second hand, which some users prefer for verifying the clock is running at a glance
  • Single AA battery means the clock may stop without warning if the battery dies and no spare is on hand

Frequently Asked Questions

It contains a built-in receiver that picks up the WWVB radio signal broadcast by NIST from Fort Collins, Colorado, and synchronizes itself daily to stay accurate within one second.
Yes, it automatically adjusts for daylight saving time changes so you never need to manually reset the time.
It requires one AA battery, which is not included in the box.
It will still function as a standard quartz clock, but it will not benefit from atomic synchronization until it picks up the signal. Placing it near a window or exterior wall can improve reception.
The clock is 12 inches in diameter with a clean analog dial and silver markers on a white face, making it easy to read from a comfortable distance in most rooms.