Free tools Windows power users keep installed
One-click scans. No signup required.
You can open a watch back without a watch-specific opener only when you first identify how it is held on. A press-fit back with a visible notch can be lifted carefully with a plastic pry edge or a suitable thin case knife. A notched screw-down back must be turned, not pried; a back held by screws needs the right screwdriver. If you cannot identify a safe engagement point, stop and take the watch to a watchmaker.
Identify the case-back type before you start
Look closely around the back’s edge before applying pressure. The shape of the seam and any visible features determine whether opening it requires lifting, turning, or removing screws.
- Snap-on or press-fit: Usually has a fine seam and a small lip or notch where a tool can engage. This is the type that may be lifted at its designed notch.
- Screw-down: Often has repeated notches or slots around the perimeter. It must be turned counterclockwise with a suitable case wrench or rubber friction ball; prying can damage it.
- Screw-held: Has several small screws securing the back. Remove them with a correctly sized screwdriver rather than trying to lift the back.
Three ways to open a watch back
1. Use a plastic pry edge on a snap-back notch
Place the watch face-down on a stable, padded surface so the crystal is protected. If the press-fit back has a visible notch, place a thin plastic spudger or other non-marring pry edge in the notch and lift gently. Keep the edge shallow and directed away from the movement.
A plastic edge is less likely than a metal blade to scratch the case, but it may not provide enough leverage. Do not rest the tool on the case and use it as a fulcrum: iFixit warns that doing so can break the case.
#1 Best Overall
- 【Watch battery replacement kit】-- This watch battery removal kit consists of a watch back case opener, a watch case opening pry, a caseback holder, a five-in-one watch screwdriver handle, and five screwdriver bits (-1.0/ -1.2/ -1.5 /+1.5 /+1.8), a spring bar tool, tweezers, 20PCS 1.5ΦSpring bar (4* 16/18/20/22/24mm) and a cleaning cloth.
- 【Suitable for different watch covers】-- Watch back wrench is used for watch cases with grooves；watch case opening pry is used for the watch case with a pry opening；Screwdriver is used for watch case fixed by screws；tweezers are used to remove the battery.The use range of the watch back case opener is 15-55mm, and the drill bit spacing is set by rolling the adjusting wheel to fit the groove of your watch back.
- 【Five-in-one watch screwdriver】-- Five types of screwdriver bits are suitable for many situations: watch battery fixing screws, watch case screws, watchband screws, and can also be used for glasses screws. The cover at the end of the screwdriver can be opened, and the inside is hollow for storing other screwdriver bits.
- 【The purpose of the watch case holder】-- The watch case holder can be used with other tools in the kit to help fix the watch. Moreover, it is more effective in avoiding the risk of sliding and scratching the watch after reducing the diameter of the spring. It is suitable for watches of various sizes, and can be used for watches with a diameter of up to 50mm.
- 【Picture Operation Manual】-- The kit comes with a user manual（in English）. The detailed pictures explain the correct usage method to you, avoid damaging your watch by wrong operation, and help you solve the watch problem at home.
2. Use a case knife at a snap-back lip
A purpose-built watch case opener knife is designed to engage the lip on a press-fit back. Insert its thin edge only into a visible notch or gap and use a controlled lifting motion. WatchStyle’s watch-care instructions describe inserting a thin blade into the notch between the back and the frame. They advise lifting rather than bracing against a lug, and recommend stopping if the blade cannot get a secure grip.
A dedicated case knife is preferable to a kitchen knife or screwdriver because its tip and angle are intended for this task. It is still a sharp tool: do not force it inward toward the movement, and never brace it against a lug. The American Watchmakers-Clockmakers Institute cautions that levering against a lug risks breaking it (AWCI training material).
Rank #2
- UPGRADE COMPLETE 155 PCS WATCH REPAIR KIT suit for professional and general use, which can solution for most watch repair requirements
- MULTIFUNCTION DELUXE WATCH TOOLS SET has every tool you need, 3 point watch wrench case opener (extra large), watch band link remover tool, pin punch, hammer, pliers, spring bar removal tool, band holder, 5x screwdriver, tweezers, case pry
- INCLUDED XL WATCH WRENCH CASE OPENER up to 55MM, easy to open groove type oversize watches. This kit is perfect for common watch trouble, like opening watch back cover, watchband adjustment, changing watch batteries, watch band remover, watch resize, watch pins remover. You will never pay pricey watchmaker fees again
- THE METAL WATCHMAKING TOOLS are made of high quality solid 304 stainless steel, they are sturdy, portable, practical and very easy to use
- EXCELLENT WEARABILITY NYLON STORAGE BAG holds the whole watch repair set neatly, and this portable zipper case is easy to carry, you can transport it to fix your watch anywhere you want
3. Turn a notched screw-down back with friction
This method is not prying. If the back has regular perimeter notches or slots, a rubber friction ball may grip it well enough to turn it counterclockwise; a case wrench is the more purpose-built option. Press evenly and turn without twisting the watch unpredictably. A friction ball is not a substitute for a pry tool on a snap-back. Lugwork’s guide distinguishes backs that lift at a lip from notched backs that must be turned.
Which method fits which back?
| Method | Compatible back | Engagement needed | Main risk or limitation |
|---|---|---|---|
| Plastic pry edge | Snap-on or press-fit | A designed notch or lip | Less likely to scratch, but may not provide enough leverage; do not use the case as a fulcrum. |
| Watch case knife | Snap-on or press-fit | A visible notch or secure lip | Can scratch or slip if it is not firmly seated; never brace against a lug. |
| Rubber friction ball or case wrench | Notched screw-down | Regular perimeter notches or slots | Turns rather than lifts; it is not suitable for prying a snap-back. |
| Correctly sized screwdriver | Screw-held | Accessible retaining screws | Do not pry the back; an ill-fitting driver can damage screw heads. |
When to stop and protect the watch
Stop if you cannot see a notch or otherwise establish a safe grip, if the blade will not seat securely, or if light, controlled effort does not release the back. A slip or excessive force can gouge the case, bend the back, damage the crystal or a lug, injure your hand, or disturb small parts. A watchmaker is the safer choice for a stubborn back or one on a valuable watch.
Rank #3
- 【Watch repair tool kit】- JOREST watch repair tool kit contains common tools required for repairing watches, suitable for adjusting and replacing watch straps, opening watch covers, replacing watch batteries, gaskets, etc., and has detailed operations Manual to help you solve watch problems at home and save expensive repair costs.
- 【Adjust the strap】- Metal watch band link remover, watch band holder, pin punches, double-headed hammer and spring bar tool with scale are used to replace various watch straps, adjust the length of the strap to fit your wrist.We are equipped with 15PCS spare needle to improve the service life of the tool, suitable for pin punch and metal watch band link remover.
- 【Suitable for different watch covers】- Watch back case opener is used for watch cases with grooves；watch case opening pry is used for the watch case with a pry opening；Screwdriver is used for watch case fixed by screws；tweezer is used to remove the battery.The use range of the watch back case opener is 15-55mm, and the drill bit spacing is set by rolling the adjusting wheel to fit the groove of your watch back.
- 【Five-in-one watch screwdriver】- Five types of screwdriver bits are suitable for many situations: watch battery fixing screws, watch case screws, watchband screws, and can also be used for glasses screws. The cover at the end of the screwdriver can be opened, and the inside is hollow for storing other screwdriver bits.
- 【The purpose of the watch case holder】 - The watch case holder can be used with other tools in the kit to help fix the watch and reduce the risk of sliding and scratching the watch. It is suitable for watches of various sizes, and can be used for watches with a diameter of up to 50mm.
Never use a lug as a brace for a pry tool. If the tool is not firmly engaged, do not compensate by pushing harder or changing to a sharper household blade. The safe opening point matters more than the amount of leverage.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Check the gasket and water resistance afterward
Opening the case can disturb the gasket, so inspect it and make sure it is correctly seated when the back is refitted. Do not assume the watch remains water resistant after opening. Treat it as not fully water resistant until it has been correctly resealed and pressure tested; Lugwork notes that opening the case breaks the water-resistance assumption.
Quick Recap
Best Value
- 【2024 Upgraded Adjustable Watch Opener】①Bigger size for better grip;②It is equipped with three different shapes of jaws, which can better adapt to different types of grooves;③The jaws are more stable, and when used with an anti-slip film, they can help you complete the job safely and efficiently.
- 【Multifunctional Screwdriver】We centralized the functions of removing screws from watches and glasses, prying open watch covers, and replacing watch spring bars in this screwdriver, which helps you save storage space and saves you the trouble of keeping multiple tools.
- 【Convenient Storage】Built-in mesh pocket for storing manuals, extra watches and watch straps, etc. Note: The pouch only shows the items that can be stored, the set does not contain these items: watches, straps, batteries.
- 【Replace the Watch Battery & Adjust the Watch Band】Suitable for watch backs with a pry opening, watch backs with grooves or watch backs with screws; The metal link remover and hammer tool can help you adjust the strap length to fit your wrist.
- 【Illustrated Instruction Manual】The instruction manual（in English） describes in detail how to use each tool, which makes it easy for even beginners to get started. This upgraded watch repair tool set is perfect for professional repairers or watch enthusiasts.
Rank #4
- 【Only for one type of watch】What you need to pay special attention to is that this adjustable watch back opener is only suitable for watch back cover with notches, not for watch back with a pry opening or screws; only suitable for round watch, not for square or other types watch.
- 【Function of the watch holder】With the watch holder, the grip area is larger, which can generate more torque and help you open the watch back cover more comfortably and efficiently. In addition, using the watch holder is more solid than fixing the watch directly by hand, which can effectively avoid scratching the watch and hand due to watch sliding.
- 【Anti-slip films】Using the Anti-slip film can enhance the friction to prevent the watch opener from slipping on the watch, and also protect the watch from the tool leaving scratches on the watch. Be sure to use the Anti-slip film, otherwise there is an increased risk of tools slipping and scratching the watch.
- 【Operation technique】Notice: Force downward and rotate the opener slowly, otherwise the clamps will tend to slip and fail to hold the watch back.
- 【Operating Instructions】The instructions(in English) are in the form of pictures plus text, explaining to you in detail the correct way to use the tools to avoid damaging your watch by incorrect operation and helping you to solve watch problems at home.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
