Difficulty

Moderate

Steps

10

Time Required

                          1 hour

Sections

4

  • Back Plate
  • 2 steps
  • Lithium Battery
  • 2 steps
  • Motherboard
  • 5 steps
  • Analog Watch Battery
  • 1 step

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1

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Introduction

It is very important to tell your users to use the correct tool for the job. Metal spudgers and screwdrivers can damage delicate internal components and puncture an unprotected battery, potentially causing a fire. When working with electronics, it’s important to choose a tool that’s ESD-safe to avoid accidental damage to the device. The metal spudger is great when you need serious prying power, but the regular black nylon spudger or a plastic opening tool should be used whenever possible.

What you need

Step 1

              Back Plate
  • Unscrew the four 3.4 mm flat head screws

Unscrew the four 3.4 mm flat head screws

1024

Step 2

  • Carefully lift the back plate off the watch. You will notice a lithium battery and rubber gasket attached to the back plate.

Carefully lift the back plate off the watch. You will notice a lithium battery and rubber gasket attached to the back plate.

Step 3

              Lithium Battery
  • If not replacing lithium battery, skip down two steps.
  • Using the plastic removal tool, pry the battery from the backing plate. The battery is simply attached with glue.

If not replacing lithium battery, skip down two steps.

Using the plastic removal tool, pry the battery from the backing plate. The battery is simply attached with glue.

Step 4

  • Desolder the battery connections from the motherboard. Learn how to solder components here!

Desolder the battery connections from the motherboard. Learn how to solder components here!

Step 5

              Motherboard
  • Use PH00 screw driver to remove two 2.4mm Phillips head screws.

Use PH00 screw driver to remove two 2.4mm Phillips head screws.

Step 6

  • Use a spudger or tweezers to remove a white sticker that covers a Phillips head screw.

Use a spudger or tweezers to remove a white sticker that covers a Phillips head screw.

Step 7

  • Use PH00 screwdriver to remove 5.2mm Phillips head screw

Use PH00 screwdriver to remove 5.2mm Phillips head screw

Step 8

  • Use ESD safe tweezers to remove the gold ribbon cable.
  • This will expose a second 5.2mm Phillips head screw that can be removed with a PH00 screwdriver.

Use ESD safe tweezers to remove the gold ribbon cable.

This will expose a second 5.2mm Phillips head screw that can be removed with a PH00 screwdriver.

Step 9

  • Use a spudger to gently pry on the motherboard towards the top of the watch, being towards the 12 o’clock position to loosen the motherboard.
  • You can now access the parts and pieces on the bottom of, and below the motherboard.

Use a spudger to gently pry on the motherboard towards the top of the watch, being towards the 12 o’clock position to loosen the motherboard.

You can now access the parts and pieces on the bottom of, and below the motherboard.

Step 10

              Analog Watch Battery
  • Use a spudger to lift the battery from the back case.

Use a spudger to lift the battery from the back case.

To reassemble your device, follow these instructions in reverse order.

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                                                                                      2 other people completed this guide.

Author

                                      with 4 other contributors 


                    David Miller

Member since: 10/24/2016

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Team

                       IUPUI, Team 3-3, Baechle Fall 2016                        

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                                            8 Guides authored

Ronald Mckim - Jul 15, 2017

Reply

I am researching for methods to change batteries on a watch. Would like to thank you for this piece. It is really good. However, you have used some tools in your tutorial. but since they pins and scissors are in everyone’s home, making your way easy

I shall be writing a post in the same topic. and would love to feature your guide on it..

Thanks

Ronald Mckim

Owner: http://www.mywatchvilla.com/

Cynthia Replogle - Jul 17, 2017

@ronaldmckim, you may embed our guide using the instructions here: https://ifixit.org/blog/8474/embed-guide…. For our content licensing policies, see: Content Licensing.

Ashwin kochar - Jun 7, 2018

Reply

Hi.. Thank you for the detailed steps, it really helped a lot in replacing the analog battery ourselves

However, now we are not able to place the mother board back in its place, hence wanted to check if there is any tips or steps or screenshots how we can place it back?