Black Hole Space

A black hole is the dial. Its perfectly black shadow sits under the hands; the glowing disk of gas that orbits it crosses in front, and the far side of the same disk is bent up over the top and under the bottom by gravity. The stars behind are bent round it too.

Ray-traced, not painted

Every pixel of the black hole was worked out by following a ray of light round it: the bending, the thin bright ring of light that has circled the hole, the gas brighter on the side that rushes towards you and dimmer where gravity drains its light. The geometry is exact and centred on the hands.

Time slows near the horizon

Tap the watch face and time slows near the horizon: the glowing gas round the hole turns darker and redder as its light is stretched, a ripple of gravity closes in - then everything snaps back with a flash of light round the hole.

A flare every hour

On the hour a hot spot flares up at the inner edge of the disk and races once round the hole, and the ring of light blazes.

Polished steel on starlight

Faceted steel hands, bright on one side and dark on the other, so they read over the black sky and the white-hot gas alike. Slim hour marks of light round the edge; the date and your readings written in light across the sky.

Three looks

• Gold: the classic glowing gas.
• Blue-white: a hotter, brighter disk.
• Red: a cooler, deep-red disk.

Readings in orbit

Steps, unread notifications and battery on an arc under the black hole, and the date above it. Put another app's complication there and it shows that app's icon, or its title where it sends no icon.

Easy on the battery

Nothing loops: the hands, the hourly flare and your tap are all that move. Always-on keeps only a faint outline of the black hole, the hour marks and the hands, dark and low.

Make it yours

• Look: gold, blue-white or red.
• Seconds hand: on or off.
• Three complications.

To customize, touch and hold the watch face, then tap Customize.

Works on watches with Wear OS 6 or later. Made in Watch Face Format: nothing to install on your phone, no permissions, no data collected.

Part of Tempus Arcanum, a collection of watch faces.