The Difference Between Time-Only and Time-Strike Movements

What’s the Difference Between a Time-Only and a Time-Strike Movements?

So, if you’re restoring a clock or building one from scratch, you’ll eventually need to choose the correct movement. Specifically, there are two common options available, time-only and time-and-strike movements. While they may appear similar at a glance, the internal function and external features differ significantly. Ultimately, understanding these differences can help you make the right purchase for your project.

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What is a Time-Only Clock Movement?

To begin with, a time-only movement is the most straightforward type of mechanical movement. So, as the name implies, it only keeps time. Thus, meaning it drives the hour and minute hands but does not chime or strike.

Now, Let’s Explore The Features of Time-Only Movements:

• Two gear trains: One for the escapement and one for the hands.
• No chime or bell function.
• Silent operation—ideal for bedrooms, libraries, or offices.
• Simpler design and longer runtime, often 8-day or 31-day.

Next, The Best Uses:

• Antique-style Wall/Mantel clocks.
• Office clocks where chimes might be disruptive.
• DIY clock builders who want a clean, quiet mechanism.

What is a Time-and-Strike Clock Movement?

Now, a time-and-strike movement not only tells time but also strikes a bell or gong to mark the hour—and sometimes the half-hour.

Of note, The Key Features of Time-and-Strike Movements:

• Three gear trains: Timekeeping, striking, and motion works.
• Audible strike: Usually a gong, bell, or rod.
• Hour count: Strikes correspond to the number of hours (e.g., 3 strikes at 3 o’clock).
• Optional half-hour strike: A single chime at the 30-minute mark.

Now, the Best Uses:

• Grandfather clocks and Wall/Mantel clocks
• Restorations of vintage clocks that originally struck the hour.
• Collectors who want both function and tradition.

Visual Comparison of Movements:

To help clarify, here’s a basic side-by-side diagram-style breakdown:

How to Choose the Right Movement

So, when selecting a clock movement, ask yourself the following:

• Do I want sound?

If no, go with time-only. If yes, then consider time-and-strike or triple-chime.

• Am I repairing a clock or building one?

Now if you are replacing a movement in a striking clock, you’ll need time-and-strike to match the original function.

• Do I have space for a chime rod or bell?

Naturally, strike mechanisms require room for hammers and chimes.

• Am I okay with winding more parts?

Of course, time-and-strike movements usually require winding of two mainsprings: one for time and one for strike.

Additionally, There are Tools You May Need:

• Clock hand puller
• Mainspring winders
• Bushings
• Oil and cleaning solutions

Of course, you can find these in our clock tools section.

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Troubleshooting Tips

Q: My time-and-strike clock only strikes once no matter what hour it is.

A: Ultimately, this typically indicates the rack and snail mechanism is not resetting correctly. So you may need to manually realign the rack.

Q: My time-only clock runs fast or slow.

A: Simply adjust the pendulum bob up or down. Therefore, raising it speeds up the clock; lowering it slows it down.

In Summary: Time-Only vs. Time-and-Strike

So whether you’re restoring a family heirloom or building a new piece, knowing the difference between these movement types will ensure your clock works—and sounds—just right.

In addition, for more guidance or to speak with a technician, visit www.clockworks.com or email us at **clockworks@clockworks.com.**

Updated on: 17/07/2025