Materials

To make a watch just as the one showed, you will need access to a laser cutter (for the case) and a way to make PCBs.

You will need:

• 1 x ATTINY13
• 1 x DS1302
• 1 x 32.768kHz crystal
• 1 x push button
• 1 x CR2032 battery (not pictured)
• 1 x CR2032 battery holder
• 2 x 8 pin IC sockets (optional for the fearless)
• 4 x 100 ohm resistors
• 10 x 3mm LEDs
• 6 x male header pins (not pictured)
• a way to make the PCB
• an Arduino (to use as ISP)

For this exact build:

• laser cutter and 3mm transparent acrylic
• 4 x 2mm screws (aprox. 10mm height)
• 4 x 2mm nuts
• Loctite (or any superglue)
• a NATO style strap