Four keys.
One knob.

Model

MA-01

Modes

Clock, World, Timer, Metro

Cities

8, by Intl time zone

Timer

1–60 min, ring shows remainder

Tempo

40–220 BPM, 4/4 accent

Knob

Drag around it, scroll, or ← → (Shift ×5)

Keys

1–4 modes · Space start / stop · S sound

Power

None

Weight

0 g

Good design is…

1. InnovativeTime zones come from the browser's own database. No offset table to go stale.
2. UsefulThree instruments share one knob. Nothing else is asked of you.
3. AestheticOne light, top left. Every bevel agrees with it.
4. UnderstandableFour keys, four lamps. The lit one is the mode. The pressed one stays pressed.
5. UnobtrusiveSilent until it has something to say. The chime stops when you touch it.
6. HonestThe grille is a grille. The sound comes from your own device.
7. Long-lastingOne file. No build, no dependencies, nothing to expire.
8. ThoroughWith reduced motion on, the hand ticks and nothing springs. Detents still click.
9. EnvironmentalNo batteries. Runs on whatever you already charged.
10. As little as possibleFour colours. Two typefaces. One knob.