Memento Mori in Horology: Clocks as Reminders of Mortality

“Memento Mori” — Latin for “Remember that you must die” — has long served as a sobering artistic reminder of human mortality. Throughout the history of horology, clockmakers and watchmakers have embraced this theme, combining mechanical mastery with spiritual reflection.

Our modern example, the “All Are Mine” clock , continues this powerful tradition.

This remarkable clock tells a story in carved symbolism. In the upper left, a wealthy man clutches his money. Above the dial stands a king, and to his right, a monk. Beneath the dial are figures representing youth and old age, and at the bottom, the world itself. The inscription reads Alle sind mein — “All Are Mine.”

The message is unmistakable: wealth, royalty, clergy, youth, age — none are exempt. Time claims all. At the top, astride the foliot balance , the personification of Death swings steadily, harvesting each passing hour.

Indeed, one could argue that all clocks are memento mori — each tick a reminder that time is being spent, never regained.

Historic Memento Mori Timepieces

Alongside our previous exploration of skull clocks, here are several striking historical examples that embody this enduring theme.

Mary, Queen of Scots’ Skull Watch

Believed to have been gifted by Mary to one of her maids of honor, this silver-gilt skull watch is engraved with figures of Death, Adam and Eve, and scenes of the Crucifixion. The movement occupies the “brain” of the skull and strikes the hours on a small internal bell.

1810 Skull Pocket Watch

An exquisite 18K gold verge and fusee skull watch set with enamel and diamonds — a haunting yet luxurious meditation on life’s brevity.

Victorian Skeleton Automaton Alarm Clock

A 19th-century mechanical alarm clock featuring a skeletal figure — an unmistakable reminder to wake up… perhaps in more ways than one.

Crystal Skull Watch (Circa 1715)

Crafted from carved rock crystal and fitted with a gold-mounted movement by James Harmar of London, this extraordinary three-part skull houses a fusee-and-chain movement within its lower jaw.

Jacobean Lantern Clock (1623)

A rare brass lantern clock engraved with Chronos and a skeleton, reflecting 17th-century Puritan preoccupation with divine judgment. One such example fetched a record £120,000 at auction.

From verge-and-fusee skull watches to carved Black Forest moral clocks, the message remains timeless: Incerta Mortis Hora — “The hour of death is uncertain.”

And so, the steady beat of escapements and pendulums does more than measure hours — it measures life itself.