This is the perfect little wearable gadget to show off to your fitness buddies! This fitness watch manually measures your heart rate and can calculate calories burnt during your workout based on your inputted age, weight and sex. It comes with all the normal features of a sports watch including time, date, alarm and stopwatch. You can even print the watch strap! (or use your own 19mm watchstrap and pin). Of course, this watch isn't water proof so don't forget to take it off before your post workout shower!

Once you've downloaded the major STL file visit http://www.project3dprint.com to order the electronics kit for this project and download the remaining assembly STL files all together! The kit will be posted to you via FREE global shipping! In the mean time you can get printing!

Lastly, watch the instructional video on how to assemble it all together!

Watch instructions and printing tips at:http://www.instructables.com/id/3D-Printed-Fitness-Watch-with-Heart-Rate-Sensor/