Calibre IX · self-winding · 319 components
The Movement
Nine bridges, hand-bevelled and black-polished, laid over the mainplate like architecture.
Vesper · Maison Horlogère
Time, assembled
by hand.
Scroll to assemble the Masterpiece — every jewel, every gear, every hairspring, in the order a watchmaker would set them.
Three hundred and nineteenpieces, in searchof one another.
Forty-two jewels.Six hundred hoursof a single pair of hands.
A windowto its beating heart.
The Masterpiece
Calibre IX — Open-Heart Automatic
Begin the assembly
The philosophy
A watch is the only machine you wear against your pulse. So we build it the slow way — one jewel, one bridge, one hairspring at a time — until six hundred hours of a single watchmaker's hands become a heartbeat you can keep for a lifetime.
The anatomy · five studies
4 Hz · free-sprung · 42 jewels
The Balance
The one part that never sleeps — 28,800 half-swings an hour, regulated to the breath of a second.
Galvanic black · applied indices
The Dial
Sixteen facets to each index, hand-set under a loupe, catching light like still water.
39 mm · steel · 50 m
The Case
Alternating brushed and mirror flanks, each transition cut by a diamond tool to a single clean line.
Integrated · tapered · on-the-fly adjust
The Bracelet
Fifty-one links, articulated so it falls around the wrist like cloth, not metal.
The open heart
Watch it
breathe.
At six o'clock, the dial opens. Through it, the balance wheel oscillates twenty-eight thousand, eight hundred times an hour — a living aperture onto the one part of the watch that never rests.
Exhibition caseback · sapphire, both sides
Genève · since 1926
One bench.
One watchmaker.
Start to finish.
There is no assembly line at Vesper. A single horologer receives the components in a numbered tray and does not put down the loupe until the seconds hand sweeps true — three weeks, sometimes four, for one watch.
Their initials are engraved, small, beneath the balance. You will need the loupe to find them.
Calibre IX,
measured.
0
components
Every one finished by hand
0
jewels
Synthetic ruby bearings
0
hours
Power reserve, fully wound
0
vph
Balance frequency, 4 Hz
“A machine that measures timeshould be worth the timeit takes to make.”
Acquire the Masterpiece
Two hundred pieces.
Then the dies are broken.
Ref. IX-A · steel on integrated bracelet · CHF 18,500. Reserved by private appointment at the Geneva atelier, or a video viewing from anywhere.
Reserve a private viewingIndividually numbered · lifetime servicing