Caffeine 3D

A caffeine molecule, rendered in 3D: the classic ball-and-stick model of the stuff in your morning cup, glossy atoms and bonds floating big and tilted over the warm bokeh of café lights, with the time in big white digits across it.

The real molecule

It is caffeine itself, 1,3,7-trimethylxanthine, built from its true 3D structure: the fused six- and five-membered rings, the two carbon-oxygen double bonds, the three methyl groups with their hydrogens. Carbon dark grey, nitrogen blue, oxygen red, hydrogen white; double bonds drawn double. Perspective, soft focus on the nearest and farthest atoms and glossy highlights give it real depth.

Every hour, it tumbles

As the hour turns, the molecule tumbles one full turn in 3D, its bonds catching the light, and settles back where it was. Tap the watch face to watch it turn any time.

Atoms for your readings

Steps, unread notifications and battery sit on three glossy atoms at the sides and the bottom, each reading on a dark label. Put another app's complication there and it shows that app's icon; set a slot to Empty and its atom goes away.

Three styles

• Classic: the familiar chemistry colours.
• Espresso: roast browns, caramel and cream.
• Neon: a glowing molecule on a violet night.

Easy on the battery

The molecule moves only on a tap and on the hour. Always-on shows only the time as a dim outline on black.

Make it yours

• Style: classic, espresso or neon.
• Three complications.
• 12- or 24-hour time, as your watch is set.

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.