Best Clock Keys of 2025

Harry Stack Avatar
Harry Stack
Last Updated: Jan 8, 2025

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Clock keys are essential tools for those who own antique or vintage clocks. These keys come in various sizes and shapes to fit different types of clocks. They are used to wind the clock's mainspring, which stores energy to power the clock's movement. Clock keys are made of durable materials such as brass or steel to ensure longevity and reliability. They are easy to use and can be stored in a safe place when not in use. Clock keys are a must-have for clock enthusiasts who want to keep their timepieces running smoothly for years to come.

At a Glance: Our Top Picks

SE Universal 4 Prong Brass Clock Key for Winding Clocks, Odd and Even Numbers (2 PC.) - JT6336-2 Cover #TOP 1
SE Universal 4 Prong Brass Clock Key for Winding Clocks, Odd and Even Numbers (2 PC.) - JT6336-2
ftb score rating icon 9.8
Jewellers Tools 2-10 & 3-11 Clock Key Set Cover #TOP 2
Jewellers Tools 2-10 & 3-11 Clock Key Set
ftb score rating icon 9.7
TAURISH 2-Piece Brass Clock Key Set Cover #TOP 3
TAURISH 2-Piece Brass Clock Key Set
ftb score rating icon 9.5

Top 10 Clock Keys

#TOP 1

SE Universal 4 Prong Brass Clock Key for Winding Clocks, Odd and Even Numbers (2 PC.) - JT6336-2

SE
JT6336-2
Brass
SE Universal 4 Prong Brass Clock Key for Winding Clocks, Odd and Even Numbers (2 PC.) - JT6336-2 Cover
SE Universal 4 Prong Brass Clock Key for Winding Clocks, Odd and Even Numbers (2 PC.) - JT6336-2

The SE Universal 4 Prong Brass Clock Key is a versatile tool designed for winding most clocks. Made of durable brass, this clock key features 4 prong odd sizes (3, 5, 7, and 9) and 4 prong even sizes (2, 4, 6, and 8). With these various sizes, you can easily wind different types of clocks. Whether you have a clock with odd or even numbered winding holes, this universal clock key has you covered. The brass construction ensures long-lasting durability, allowing you to wind your clocks with ease and confidence. With 2 pieces included, you'll have a spare or can share one with a fellow clock enthusiast. Say goodbye to struggling with winding your clocks and say hello to the convenience of the SE Universal 4 Prong Brass Clock Key.

What We Like
Versatile
Durable brass
Includes 2 pieces
#TOP 2

Jewellers Tools 2-10 & 3-11 Clock Key Set

Jewellers Tools
Jewellers Tools
Gold
Jewellers Tools 2-10 & 3-11 Clock Key Set Cover
2-10 & 3-11 Clock Key Set : Winged Brass Spider Star Pair - Odd & Even (110)

This Jewellers Tools Clock Key Set includes two sets of clock keys. The first set consists of keys with hole sizes of 2.75, 3.25, 3.75, 4.25, and 4.75mm for numbers 2, 4, 6, 8, and 10. The second set includes keys with hole sizes of 3.0, 3.5, 4.0, 4.5, and 5mm for numbers 3, 5, 7, 9, and 11. With these keys, you can easily wind various types of clocks, ensuring they stay accurate and functional. The set provides convenience and versatility for clock enthusiasts and professionals alike.

What We Like
Set of 10 keys
Multiple hole sizes
Versatile for different clocks
#TOP 3

TAURISH 2-Piece Brass Clock Key Set

TAURISH
Brass Clock Winding Key
Brass Gold
TAURISH 2-Piece Brass Clock Key Set Cover
2 Pieces 5-in-1 Odd/Even Number Brass Clock Winding Key

The TAURISH Clock Key Set includes two brass keys designed for winding clocks. With both odd and even prongs available in various sizes, you can easily find the right fit for your clock. The odd sizes range from 3 to 11, while the even sizes go from 2 to 10. This universal application makes it convenient for you to use these keys on a wide range of clocks, ensuring you can keep your timepieces running smoothly. The durable brass construction also adds to their longevity, making this set a reliable addition to your clock maintenance toolkit.

What We Like
Universal compatibility
Durable brass material
Multiple size options
Convenient for clock maintenance
#TOP 4

Brass Blessing Clock Winding Key

Brass Blessing
Natural
BRASS GOLD
Brass Blessing Clock Winding Key Cover
Brass Blessing Clock Winding Key - 5024

Brass Blessing Key Set is a collection of EVEN SIZE CLOCK WINDING KEYS made fully of brass. The set includes five keys in sizes: 2.75mm, 3.25mm, 3.75mm, 4.25mm, and 4.75mm. These keys are essential for winding various types of clocks. The brass material ensures durability and longevity. The even sizes cater to different clock mechanisms, providing versatility for users. With this key set, you can easily wind your clocks and keep them running smoothly.

What We Like
Durable Brass Material
Versatile Key Sizes
Easy Clock Winding
#TOP 5

JEWEL TOOL Universal Brass Clock Key Set

TJ9652
JEWEL TOOL Universal Brass Clock Key Set Cover
JEWEL TOOL Universal Brass Clock Key Winder Set | 2 Piece Set Includes Odd Even Numbers | Great for Windig Grandfather Clocks, Antique Clocks, Watchmakers, Watch Repairs

The JEWEL TOOL Clock Key Set includes two brass keys designed for winding various clocks, including grandfather and antique models. With five prong sizes for both odd and even numbers, you can easily find the right fit for your clock. This versatility allows you to manage your timepieces efficiently, ensuring they run smoothly. The set also comes with a vinyl pouch for convenient storage, making it easy to keep everything organized and accessible. Whether you’re a watchmaker or simply maintaining your own collection, this set is a practical addition to your toolkit.

What We Like
Versatile prong sizes
Durable brass material
Includes storage pouch
Ideal for various clocks
#TOP 6

Brass Blessing: 5 Prong Clock Key with Odd Numbers (5023)

1Odd
BRASS GOLD
Brass Blessing: 5 Prong Clock Key with Odd Numbers (5023) Cover
Brass Blessing : 5 Prong Brass Clock Key for Winding Clocks, ODD Numbers, 1 Piece (5023)

The Brass Blessing clock key is a universal brass key with 5 prongs specifically designed for winding clocks. This key has odd numbered sizes ranging from 3mm to 5mm. These sizes are 3mm - 1/8 in (3), 3.5mm - 9/64 in (5), 4mm - 5/32 in (7), 4.5mm - 0.174 in (9), and 5mm - 13/64 in (11). With its universal design and variety of sizes, it is easy to find the right size to wind your clock.

What We Like
Universal brass key with 5 prongs suitable for winding clocks
Includes odd numbered sizes from 3mm to 5mm
Easy to use and find the right size to wind your clock
#TOP 7

Universal Solid Brass Clock Winding Key Set

Generic
Five prong keys set of 2
Gold
Universal Solid Brass Clock Winding Key Set Cover
Universal Solid Brass Clock Winding Key Antique Grandfather Clock | 2-10 & 3-11 Clock Key Set | Winged Brass Spider Star Pair - Odd & Even (110)

The Brass Clock Key Set is crafted from high-quality solid brass, ensuring it will last for many years while you wind your clocks. This complete set includes two keys designed for both odd and even numbered clocks, making it versatile for various antique timepieces. With its elegant winged brass spider star design, it adds a stylish touch to your clock maintenance tools. The ergonomic design allows for a comfortable grip, making the winding process easy and efficient, even for beginners. You'll find that this set enhances your clock care routine significantly.

What We Like
Durable solid brass material
Includes odd and even keys
Stylish antique design
Ergonomic grip for ease
#TOP 8

Brass Blessing 18 Piece Clock Winding Key Set

Brass Gold
Brass Blessing 18 Piece Clock Winding Key Set Cover
Brass Blessing 18 Piece Clock Winding Key Set - Original Brass, Odd/Even Number (5020)

This Brass Blessing 18 Piece Clock Winding Key Set is a must-have for clock enthusiasts who struggle with finding the right key for their clocks. It contains 18 prongs, catering to the majority of winding clock keys. Made of brass, it comes in a convenient plastic box for storage. This set is the ultimate solution for those with many winding clocks in their possession.

What We Like
Contains 18 prongs, catering to the majority of winding clock keys.
Made of brass, ensuring durability and longevity.
Comes in a convenient plastic box for storage, making it easy to keep track of.
#TOP 9

Brass Blessing Clock Key 5025

4Key Set
Brass Gold
Brass Blessing Clock Key 5025 Cover
Brass Blessing : Master Key for All Ship Clock - Brass - Total 10 Prong in Two Piece Even/Odd (5025)

The Brass Blessing Clock Key 5025 is a set of 2 brass keys for winding clocks with 5 prongs each for odd and even numbers. The odd sizes include 3, 5, 7, 9, 11, and the even sizes include 2, 4, 6, 8, 10. These keys have a universal application, making them suitable for most winding clocks. The master key ensures you have the right key for your clocks, offering convenience and ease of use. Brass Blessing provides quality clock keys at a reasonable cost, ensuring a satisfying shopping experience for you.

What We Like
Brass construction
Universal application
Convenient master key
#TOP 10

TAURISH Extra Long Clock Winding Key

TAURISH
TR-UBELNGKEY-BRASS
Brass Gold
TAURISH Extra Long Clock Winding Key Cover
Extra Long Brass Universal Clock Winding Key for Antique Vintage Clocks - Key for Mechanical Clock (Key No. 0-2.25mm I.D.)

The TAURISH Clock Winding Key is designed for antique and vintage mechanical clocks, making it an essential tool for clock enthusiasts. Its extra-long design allows for easier winding, giving you better leverage and control. The key comes with multiple size options, accommodating various clock models, ensuring a perfect fit for your timepiece. With diameters ranging from 1.75mm to 6mm, you can confidently wind different clocks without hassle. This universal key is made of durable brass, promising longevity and reliability for all your clock maintenance needs.

What We Like
Multiple size options
Durable brass construction
Extra-long design
Universal compatibility
Buying Guide Image

Basic Information to Help You Figure out the Best Clock Keys

Introduction

Clock keys are an essential tool for anyone who collects or repairs clocks. These small, specialized tools are used to wind the mainspring of a clock, which powers the timepiece. Choosing the right clock key can be a daunting task, especially for those who are new to clock collecting or repair. In this article, we will explore the various factors to consider when selecting a clock key, as well as some tips for using and maintaining this important tool.

Types of Clock Keys

Clock keys come in a variety of shapes and sizes, and the type of key you need will depend on the type of clock you have. The most common types of clock keys are:

  • Barrel keys, which are used to wind clocks with a barrel-shaped mainspring.
  • Lever keys, which are used to wind clocks with a lever-type escapement.
  • Fusee keys, which are used to wind clocks with a fusee-type movement.

There are also keys for specific types of clocks, such as grandfather clocks, cuckoo clocks, and skeleton clocks. It is important to choose the right type of key for your clock, as using the wrong key can damage the movement.

Size and Fit

Once you have determined the type of key you need, the next step is to choose the right size. Clock keys are typically measured in millimeters, and the size of the key is determined by the diameter of the hole in the winding arbor (the part of the movement that the key fits into). Measuring the diameter of the winding arbor with a caliper or a ruler will help you determine the size of key you need.

It is important to choose a key that fits snugly in the winding arbor. A key that is too loose may slip and damage the movement, while a key that is too tight may not fit at all or may require excessive force to insert, which can also damage the movement. If you are unsure of the size of your clock's winding arbor, it is best to consult a clock repair professional or the manufacturer of your clock.

Material and Finish

Clock keys are typically made of brass or steel, and the material you choose will depend on your personal preference and the type of clock you have. Brass keys are generally less expensive and have a softer, warmer tone, while steel keys are more durable and have a sharper, more precise feel.

In terms of finish, clock keys are available in a variety of options, including polished, satin, and antique. Polished keys have a shiny, reflective surface, while satin keys have a matte finish. Antique keys are intentionally aged to give them a vintage look. The finish you choose will depend on your personal taste and the style of your clock.

Additional Features

Some clock keys come with additional features that may be useful depending on your needs. For example, some keys have a T-shaped handle, which provides a more comfortable grip and makes it easier to turn the key. Other keys have a reversible head, which allows you to wind the clock in both directions. Still others have a built-in handle that can be used as a winding crank. Consider what features may be useful to you when choosing a clock key.

Conclusion

In conclusion, choosing the right clock key is an important step in maintaining and repairing your clock. Consider the type, size, material, and finish of the key, as well as any additional features that may be useful to you. With the right clock key in hand, you will be able to keep your clock running smoothly for years to come.

Frequently Asked Questions (FAQs)

1. How do you size a clock key?

Clock keys come in various sizes. To determine the size of the key needed for your clock or watch, measure any edge of the winding square (also known as the "peg") in millimeters and refer to the sizing charts.

2. What are the different types of clock keys?

There are various types of clock keys available, including alarm clock keys, American and Vienna regulator keys, anniversary clock keys, French clock keys, let down and universal keys, among others.

3. What is a clock key for?

A clock key is used to wind a mechanical clock. By measuring the winding arbor (steel shaft the key fits on to) on the back of your clock, you can determine the size of the key required.

4. Can you wind a clock without a key?

If you don't have a clock key, you can use improvised objects like a pen cap, small screwdriver, or paperclip to wind the clock. Choose a tool that fits snugly into the winding arbor and turn it clockwise to wind the clock.

5. Are all grandfather clock keys the same?

No, grandfather clock keys are not the same and do not match any specific grandfather clock. If you lose or misplace a grandfather clock key, you will need to explore other options to unlock the door.

6. What are the 3 key holes on a clock?

On a clock, the middle hole powers the time train for keeping time, the hole on the right powers the quarter-hour chiming, and the hole on the left powers the striking at the top of the hour.

7. What does a grandfather clock key do?

A grandfather clock key is used to wind the 8-day mechanism of the clock. It eliminates the need for batteries in the operation of the clock.

8. Are all clock keys the same?

Clock keys come in different sizes depending on the type of clock movement. Larger German movements usually require a #8 key, while 31-day or Korean/Chinese-made clocks typically use a #6 or #7 key. American-made mantel clocks often use a #5 or #6 key. Tall-case (grandfather) clocks may require a #10 or #11 winding crank instead of a key.

9. What are the 3 key holes on a wind-up clock?

In a wind-up clock, the middle hole winds the spring for timekeeping, the right hole powers the chimes, and the left hole powers the hourly strikes.

Editor's Notes

During our clock key research, we found 24 clock key products and shortlisted 10 quality products. We collected and analyzed 15,218 customer reviews through our big data system to write the clock keys list. We found that most customers choose clock keys with an average price of $18.17.

The clock keys are available for purchase. We have researched hundreds of brands and picked the top brands of clock keys, including SE, Jewellers Tools, TAURISH, Brass Blessing, JEWEL TOOL. The seller of top 1 product has received honest feedback from 816 consumers with an average rating of 4.8.

Written by
Harry Stack Avatar

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.