PANEL — Instrument Cluster Watch Face

PANEL is an instrument cluster for your wrist. Six small rings sit quietly in the corner of the face and only speak up when something actually needs you. THE RINGS - Every ring has three states, and they are drawn so you can tell them apart at a glance: a hairline arc when the reading is fine and you can ignore it, a solid arc while it is in progress, and an inverted badge when it is time to act. - Only three readings can raise a badge, because only three have a threshold that published work supports. A face that alarms every day is not information, it is background noise. - M — sitting. Fills over 30 minutes, not an hour. A 2024 meta-analysis of 13 randomised trials found that interrupting sitting every 30 minutes with a short walk lowers post-meal glucose, while hourly breaks do not. Garmin's own move bar runs on an hourly cycle, so PANEL keeps its own. - R — Body Battery, flagged below 25, Garmin's own "low" band. - B — watch battery, flagged below 20 percent. - The other three (daylight, steps, heart rate) show where you are and nothing more. A watch face should not issue medical warnings. - Ten marks around each ring at ten percent intervals, so you can count how full it is instead of guessing. - The seconds keep running in low power, so the register is never showing a stale number. TIME - One row, as large as the case allows, in a typeface baked for this screen. Digit width and stroke weight were chosen by measuring which pairs of numerals become confusable at a distance, with the glare of white-on-black included. - A seconds register: a hairline track with the elapsed part drawn over it in a heavy arc, and the exact second in the middle. Two layers, nothing else. - A date-time group along the bottom edge, in the standard DDHHMMZ MON YY form, set in black on a white plate so the zone boundary is a surface and not a suffix. The large time and the date are local; only the plate is UTC. - Date in army, ISO 8601, US or ordinal form. Every one of them carries the year, because the date-time group does. CHOICES - Two of the six rings can be reassigned: daylight can become calories or floors, heart rate can become stress or pulse ox. Daylight needs a position fix, so anyone who never has one gets a ring that works. - The sitting alert can be switched off. The reading stays; only the prompt goes. WHAT IT WILL NOT DO No invented numbers. When a reading is unavailable the ring says so instead of drawing a zero. No focus score, no readiness index built from data that cannot support one. Pure black and white, drawn pixel by pixel for the 1-bit display, and checked against a measured map of which pixels the case actually leaves visible.