How can you make a wristwatch out of a calculator (or other machine)?

Make a wristwatch out of a calculator 

Making a wristwatch out of a calculator or any other machine would require some technical skills and modifications. While it's not a typical DIY project, here's a general outline of the steps you could follow:

Select a suitable calculator:

 Choose a calculator with a small form factor that can be comfortably worn on your wrist. Look for one that has a clear and readable display.


Disassemble the calculator: 

Carefully open up the calculator, taking note of how the internal components are arranged. You may need to remove the housing, buttons, and any unnecessary parts to make it smaller and lighter.

Modify the display:

 If the calculator's display is too large or not designed to be used as a wristwatch, you'll need to modify it. One option is to replace the original display with a smaller, more suitable one. Alternatively, you could create a custom enclosure or frame around the existing display to make it wearable.


Design the strap:

 Decide on the type of strap or band you want for your wristwatch. It could be made of metal, leather, fabric, or any other material of your choice. Ensure it is securely attached to the calculator's body.


Power source: 

Determine how you'll power the modified calculator. You could use the existing power source if it's battery-operated, or you might need to modify it to run on a different power supply. Consider the battery life and how it will be recharged or replaced.


Control and adjust the time:

 If the calculator doesn't have a built-in clock function, you'll need to integrate a mechanism that allows you to set and display the time. This may involve adding buttons or switches for time adjustment and programming the calculator to act as a watch.


Assemble and test: 

Carefully reassemble the modified calculator, ensuring all the components fit securely. Test the functionality and make any necessary adjustments before finalizing the design.


Refine and personalize: 

Once the basic functionality is working, you can add personal touches such as custom buttons, decorative elements, or additional features like a stopwatch or alarm.

It's important to note that creating a wristwatch from a calculator or any other machine is a complex task that requires technical knowledge, skill in electronics, and access to the necessary tools. If you're not familiar with these areas, it may be more practical to explore other options for obtaining a wristwatch.