Metro - Last Light - Watch

This is my take on Artyom's Watch during Metro - Last Light.
~ Since I didn't get the 1 in 10 Metro Exodus Artyom Edition. >.<


* Print out the Glass Tube in clear filament if you can, or cut to length a frosted bic pen tube.

Go to "https://www.instructables.com/id/Metro-Last-Light-Watch/" to get full progress. Still in beta process.

Electronics:
* 1x 0.36 inch 4 Bits Digital LED Tube Module With Clock Display TM1637 Common Anode
* 1 to 2 x blue leds
* 1 x opaque bic pen (the casing you need for led housing)
* 1 x Adafruit Micro-Lipo Charger for LiPo/LiIon Battery with MicroUSB Jack - v1
* 1 x 3.7V 200mAh 402030 Lithium Polymer Li-Po Rechargeable Battery
* 1 x Arduino nano or Arduino Pro Mini (depending on size of case)
* CR1220 Lithium Battery 3V Button (1 to 3 years of service time)
* 1 to 2 x momentary switch


Items needed:
* 3/32" drill bit to ream out the 8 holes.
* 2.5mm drill bit + m3 tap
* 4 x m3 machine screws, snipped off just under the circuitry hol