Crystal Die 3D

A clear crystal die with twelve faces rests on black velvet in the middle of the dial, and the face turned towards you shows the hour, its numeral cut into the crystal in a classic high-contrast serif. The other faces glimmer round it, their numerals seen dimly through the crystal.

Rendered in 3D

The die is ray-traced, not drawn: studio light refracts through it and reflects off its bevelled facets, its edges split the light into little rainbows, and it casts a soft shadow and a glow of focused light on the velvet.

Tap to roll

Tap the die and it is thrown: it tumbles round in 3D, the softboxes flashing through the crystal, and lands back on the hour with a little rock. Every hour it rolls by itself to the new hour's face.

Minutes on a ring of light

There are no hands: a glowing bead goes round a ring of sixty fine marks, numbered every five minutes.

Three crystals

• Clear.
• Amethyst.
• Sapphire.

Readings in crystal gems

Steps, unread notifications and battery are etched into three small cut crystal gems at 9, 3 and 6, and the date into a gem at 12. Put another app's complication there and it shows that app's icon and value; set a slot to empty and its gem goes away.

Easy on the battery

At rest nothing moves faster than once a minute; the die rolls only on a tap and on the hour. Always-on shows only the hour's numeral in outline and the minute bead, dim on black.

Make it yours

• Crystal: clear, amethyst or sapphire.
• 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.