Marine Chronometer

An antique marine chronometer, seen from straight above in its open mahogany box: the heavy brass bezel in its gimbal ring, and inside it a dial printed in black the way the old ship's chronometers were - Roman hours set round the dial, a fine railway minute track, and blued-steel spade hands with polished bevels under a domed glass.

A real chronometer's dial

At 12 sits the power reserve, its small blued hand sweeping an arc from DOWN to UP: here it shows your watch's own battery. At 6 the small seconds turn, one step a second. At 3, just inside the III, a small window shows the date, printed black on a white disc.

Engraved in brass

Two brass plates set into the box below the bowl carry your readings as engraving: steps on the left, unread notifications on the right. Put another app's complication on a plate and it is engraved there with that app's icon, or its title where it sends no icon. Set a plate to Empty and it is gone from the box.

Light on the glass

Tap the watch face and a band of light glides over the domed glass. Each hour a soft ring of light goes round the brass bezel, like a chime.

Two dials

• Silvered, with its fine frosted grain.
• White enamel.

Easy on the battery

Nothing moves but the hands; the light plays only on a tap and on the hour. Always-on shows only the printed hours and the hands, dim on black.

Make it yours

• Dial: silvered or white enamel.
• Two complications, on the brass plates.

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.