Changing Watch Straps: Plastic Handles

how to replace plastic handle watches

If you're looking to replace the strap on a plastic-handled watch, there are a few options available to you. Firstly, determine whether the watch movement has failed and whether it's mechanical or quartz. If it's beyond repair, you may need to replace the movement. Otherwise, if you're simply replacing a worn-out or broken strap, or you want to change the look of your watch, you can do so by removing the old strap and installing a new one. This can be done at home with the proper tools and a steady hand. Most watches have a spring pin, which allows for the removal and replacement of straps. Alternatively, some watches have holes in the watch case, which the strap is attached to. If your watch has spring pins, you can remove the broken band pieces and replace them with a new strap made from fabric, leather, or another material.

Characteristics and Values Table for Replacing Plastic Handle Watches

Characteristics Values
Removing plastic wrapping from a new watch Use a flat plastic object to pry it off, or cut it. Alternatively, use a knife, toothpick, or your teeth. Boiling water can also be used to remove the plastic.
Removing old watch strap For watches without drilled lug holes, remove the old strap from the watch case.
Installing a new watch strap Put the spring bars into the replacement strap pieces and reinstall them between the lugs. Ensure the spring bar barrier is in place to prevent losing the spring bar.
Replacing watch movement Determine if the watch movement is mechanical or quartz. If the movement is damaged beyond repair, replace it with a quartz electronic movement. When purchasing a new movement, it may include a watch stem, a temporary plastic crown, and a battery.
Watch disassembly tools Sharp knife, small screwdriver, and tweezers.

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Identify the type of plastic handle watch

To identify the type of plastic handle watch, you must first understand the different parts of a watch and the materials used. The case of the watch, also known as the body or housing, is the metal, plastic, or ceramic covering that holds all the various parts of the watch in place. The watch strap, which is made of different materials and styles, is what attaches the watch to your wrist. Watch straps can be made of metal, leather, nylon plastic, or even sustainable materials such as recycled ocean plastics.

The crystal, or window, of the watch is the clear cover that protects the dial and its parts from dust, debris, and scratches. The crystal can be made of glass, acrylic, mineral, sapphire, or plastic. Acrylic crystal is a type of inexpensive plastic that can be buffed to remove small scratches. Sapphire crystal, on the other hand, is the most durable and scratch-resistant option, although it is more expensive.

The crown is the knob that sticks out from the side of the watch and is used to adjust the time and date. The bezel is the outer ring that holds the crystal in place and can be decorative or functional, such as monitoring elapsed time or calculating speed.

When identifying a plastic handle watch, the key is to look at the material of the case and strap. The case is usually made of plastic in sports watches, and some manufacturers offer sustainable or recycled plastic options. The strap is also commonly made of plastic, with nylon plastic being the most common material for fabric straps.

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Gather the right tools

To replace the plastic handle of your watch, you will need to gather the right tools. While the exact tools you will need may vary depending on the type of watch you have, there are some common tools that are typically required for this task. Here is a list of tools you may need to replace the plastic handle of your watch:

  • A sharp knife: This can be useful for prying off the back of the watch case and turning any screws with grooves that are thinner than what your screwdriver can handle. Be careful when handling sharp objects.
  • Small screwdriver: A small screwdriver, preferably 1/16" or 1/32" or smaller, is ideal for removing screws from the watch case. You can purchase inexpensive small screwdrivers from a general store for glasses repair. Alternatively, you can flatten the tip of a paper clip to create a makeshift small-diameter screwdriver.
  • Tweezers: Tweezers can be handy for holding small components in tight spaces. While not essential, they can be useful to have during the disassembly process.
  • Spring bar tool: If you are replacing the watch strap, you may need a spring bar tool to help with compressing and installing the spring bars between the lugs. Spring bars are very small and easy to lose, so having a spring bar tool can help reduce the risk of losing them.
  • Work barrier: It is recommended to set up a work barrier to protect your workspace and prevent the loss of small parts. You can use a piece of paper or a wide, flat-bottomed object as a barrier.

Before beginning the replacement process, ensure that you have identified the correct tools required for your specific watch model. Additionally, it is important to work carefully and patiently when handling the small components of your watch.

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Remove the old strap

To remove the old strap from your watch, you will need to set up a workspace with the necessary tools. Place your watch on a clean microfiber cloth or soft pad to prevent scratching. You can also lay out a barrier, such as a piece of paper, behind the watch to catch any small parts that may come loose during the process.

The next step is to identify the type of attachment system your watch has. Most watches have a spring bar, which is a spring-loaded, telescoping metal rod with double-flanges on each end. Spring bars connect the strap pieces to the watch case via small holes inside a pair of lugs. If your watch has a spring bar, use a spring bar tool to compress and remove it. Spring bars are small and spring-loaded, so handle them with caution to avoid losing any parts or causing damage.

Some watches may have a different attachment system, such as a spring pin or holes in the watch case. If your watch has a spring pin, you can remove the broken band pieces for replacement. If your watch case has holes, you may need to attach a strap that is specifically designed for that brand of the watch or create your own homemade strap.

Once you have identified and released the attachment system, carefully remove the old strap from the watch case. If your watch has a mainspring, be very careful when handling it as it stores a lot of potential energy. Use your fingers or tweezers to slowly unwind and remove the mainspring, being mindful to turn your head away to protect your eyes.

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Install the new strap

To install the new strap, start by laying your watch upside down on a cloth or towel to protect it from sliding and scratching. It is recommended to cover the lugs with masking tape or painter's tape to avoid scratching the watch with your tools. Position the strap in between the lug pinholes. Compress the pin using the spring bar tool while sliding the spring bar itself securely into place between the lugs. Repeat the previous step for both sides of the watch.

The spring bar is a spring-loaded and telescoping metal rod with double-flanges on each end. The spring bar ends fit into small holes inside a pair of lugs on the watch case. A spring bar tool is a long, thin tool with a forked end that, by engaging and applying pressure to the flanges of the spring bar, compresses the spring bar so that it can be removed and installed.

The short end of the strap with the buckle is attached to the 12 o'clock (top) side of the watch case, and the long end is attached to the 6 o'clock (bottom) side of the watch case. Finally, pick up the watch with the newly installed strap and, using a microfiber cloth or other soft cloth, wipe away any smudges that have gathered on the watch face.

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Tips to avoid damage to the watch

To avoid damaging your watch when replacing a plastic strap, there are several steps you can follow. Firstly, ensure you have a suitable workspace. Find a sturdy, level surface to ensure stability and lay out a soft cloth or towel to protect the watch from scratches or other damage.

Next, gather the necessary tools. You will need a spring bar tool, a screwdriver, and possibly plastic tweezers and finger cots. The spring bar tool is used to remove and install the spring bars, which hold the strap in place. The screwdriver will be used to gently pry the spring bars out of their lug holes. Plastic tweezers can be useful for holding small components, and finger cots will protect the watch's inner workings from the dirt, oils, and grease on your fingers.

Before beginning any work on the watch, ensure you have visualised the location of the lug holes, as they will not be visible when installing the replacement strap. When removing the spring bars, be cautious as they are spring-loaded and may fly off the watch, and their small size makes them easy to lose. You can place a barrier, such as a piece of paper, behind the watch to prevent spring bars from flying off and getting lost.

When removing the old strap, work on one strap piece at a time. Start with the long piece, which is punched with holes for the buckle. Firmly grip the watch case with your non-dominant hand and use the screwdriver with your dominant hand to gently push outward, releasing one end of the spring bar from the lug hole. Repeat this process for the other strap piece.

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