REMONTOIR.
Atelier d'horlogerie · Vallée de Joux

Time, cut into
28,800 pieces
an hour.

Remontoir builds mechanical watches by hand in the Swiss Jura. The escapement turning at the edge of this page is beating in real time — five swings a second, forever, until someone forgets to wind it.

0 beats since you arrived
Complications

Everything a watch
does besides the time.

A complication is any function beyond hours and minutes. Each one is a small argument with entropy, solved in brass.

01

Tourbillon

A cage that rotates the whole escapement once a minute, averaging out the pull of gravity. Invented 1801 to help pocket watches kept upright in a waistcoat.

72 PARTS · 0.4 g
02

Minute repeater

On demand, hammers strike gongs to chime the time — hours, quarters, minutes. The hardest sound in horology to make beautiful.

120 PARTS · 2 GONGS
03

Perpetual calendar

Knows the length of every month, including February in a leap year, until 2100 — when someone must nudge it, because 2100 is not a leap year and gears cannot read the exception.

206 PARTS · TO 2100
04

Remontoir d'égalité

Our namesake. A tiny secondary spring, re-armed every second, that feeds the escapement one identical push at a time — so the watch runs as evenly at empty as at full.

31 PARTS · 1 s
Calibre RM-01

Three hundred parts,
the size of a coin.

28,800vibrations per hour — 4 Hz
72 hpower reserve from a single wind
0.002 mmthe tolerance a pivot is finished to
19jewels — synthetic ruby bearings that never wear