Space Watch SW63

Sci-fi inspired electronic watch.

MK4 in the development, out in 2026.

How to tell the time?

When the button is briefly pressed, SW63 tells you the time using a sequence of LED blinks. It's not a binary clock, it's inspired by the analog clock hands movement and uses quarters, halves and so on; similar to how people used to tell the time before the digital clock became popular.

16:35
half past - four - hours - and - five - minutes - PM

6:57
three - minutes - to - whole - seven - hours

Language can be changed in the watch menu to reflect the different ways different languages express the time ("half past five" in English is "half of six" in German etc).

See LANGUAGES.md for the full list and examples.

Controls

Short press: Show the time
Long press: Enter Menu (setting the language and time)
Extra long press: Enter Secret settings
Multiple short presses: Show animation

In Menu / Secret settings:
Short press: Change
Long press: Confirm and go to next

BOM (DIY Kits)

Name	Part Number	Qty
PCB with assembled SMD components	custom part	1
Red 5 mm LED	LL-503VD2E-V1-4D	1
Green 5 mm LED	LL-504PGD2E-G5-2B	1
Blue 5 mm LED	LL-504BD2E-B4-2B	1
Yellow 5 mm LED	N0Y64L35 L-53SYD L-53SYDK	1
Yellow 3×2 mm LED	LL-234YD2Q-1B	4
Red 3 mm LED	FYL-3014LRD1A FYL-3014SRT1A	1
Li-Po battery LP301020 or LP301120*	AKY0471 SparkFun 13852 SparkFun 25270	1
CNC aluminium enclosure	custom part	1
Screw M1.6 length 4mm (hex socket)	-	4
18 mm watch spring bar	-	2
18 mm watch strap	-	1

[!WARNING] *Note: Due to the shipping restrictions the Li-Po battery isn't part of the DIY Kit. Please provide your own 40 mAh battery with dimensions 20 mm × 11 mm × 3 mm (or smaller) with the integrated protection circuit.

License

Schematics, Hardware Designs
CERN-OHL-P-2.0

Code
MIT

Visual elements, Graphics, Documentation
CC BY-SA 4.0