Solder:Time DIY watch kit

A DIY soldering kit that builds into a working wrist watch. The Solder:Time features a Dallas DS1337+ real-time clock for accurate timekeeping, an LED display, and a laser-cut clear acrylic case that shows off the internal electronics. Beginner-friendly — just solder, stack, and screw together.

Wear it as a watch, use it as a desk clock, or clip it on as a badge. The onboard microcontroller is hackable via labelled programming and I²C pads on the underside.

Key Features

• DS1337+ RTC – Accurate real-time clock IC
• Laser-Cut Acrylic Case – Clear front and back to display the electronics
• Beginner-Friendly – Easy to solder, no computer or programmer required
• Low Power Design – Special LED lighting method and processor sleep for long battery life
• Hackable – Programming and I²C pads labelled on the bottom
• Always-On Jumper – Optional jumper for continuous display
• Adjustable Wristband – Velcro-style, fits large wrists and trimmable for smaller ones

Package Contents

• 1× Solder:Time PCB with all electronic components
• 1× Laser-cut acrylic case (4 pieces) with 4 screws
• 1× Velcro wristband
• 1× CR2032 battery

Resources

• Assembly Instructions