When a brand with centuries of history discharges something modern, observe significant others pay consideration. The unused Traditionnelle Never-ending Calendar UltraThin by Vacheron Constantin is such a discharge. It is exquisite. It is refined. And it appears how highwatchmaking can combine complexity and slimness.
In 2025, Vacheron Constantin presented three modern models in this collection. They come in 18k 5N pink gold, 18k white gold, and a diamondset white gold form.
All share the same compact measurements: a 36.5mm case distance across and 8.43mm thickness. These modern pieces display a new way to wear a ceaseless calendar — unobtrusive, classy, and ageless. Let’s investigate what makes them stand out.
What Is the Traditionnelle Perpetual Calendar UltraThin?
The Traditionnelle Interminable Calendar UltraThin is portion of Vacheron Constantin’s “Traditionnelle” line — a collection established in classical observe plan.
The “perpetual calendar” implies the observe consequently tracks day, date, month, jump year, and indeed moon stage. Once it is set, the calendar keeps running accurately — indeed through brief and long months, and jump a long time — without requiring manual rectification, at slightest until the year 2100.
The “ultra-thin” portion is its characterizing include. Interior sits the in-house development Calibre 1120 QP, as it were 4.05 mm thick; however it carries all those complications.
The result: a observe that is actually complex, however rich and wearable — not bulky. It offers a uncommon blend of haute horlogerie and ordinary comfort.
Design and Case: Measure, Materials, and Styles
Compact 36.5 mm Size
The modern convention is housed in a 36.5 mm circular case. At 8.43 mm thick, it remains thin and refined.
This measure is littler than numerous present day men’s observes. It gives the observe a more classical, vintageinspired profile. It sits comfortably beneath a shirt sleeve. It works well for formal settings.
Materials and Versions
Three forms exist:
18k 5N pink gold — warm tone, classic feel.
18k white gold — a more inconspicuous, exquisite see.
Diamond-set white gold — for those who need additional shimmer and extravagance; bezel, hauls, and crown are embellished with jewels.
Each demonstrate has a coordinating croc calfskin strap. The pink-gold show employments a dull blue strap; the white-gold one a light brown; the gem-set form gets a dim blue strap as well.
Dial and Hands
The dial is silver-toned opaline. The format remains classic: three sub-dials also moon-phase. Month (with leap-year sign) sits at 12 o’clock, date at 3, day at 9, and moon-phase + age-of-the-moon at 6 o’clock.
Hands are dauphinestyle, markers are baton-style — basic, clean, and rich. On non-gem-set models, the hands and markers are in 18k 5N pink gold; on the gem-set adaptation they coordinate the white-gold case.
Despite different complications, the dial is adjusted, neat, and not cluttered. It demonstrates that a complicated observe can still see straightforward and exquisite.
The Development: Calibre 1120 QP — Where Complexity Meets Slimness
The heart of this observe is the in-house programmed development, Calibre 1120 QP. It's as it were 4.05 mm thick. However it powers a full ceaseless calendar with moon-phase and leap-year sign. It moreover runs hours and minutes.
Details:
- 276 components
- 36 jewels
- Frequency: 19,800 vph (2.75 Hz)
- Power save: ~40 hours
The development is too perfectly wrapped up. Through the straightforward sapphire caseback you can respect hand wrapping up: Côtes de Genève on bridges, circular graining on the mainplate, cleaned gear-train teeth, hand-bevelled edges, and an open-worked 22k gold rotor formed as the brand’s Maltese cross symbol.
The wrapping up meets the criteria of the prestigious Trademark of Geneva — a seal of quality and legacy.
Thus, indeed in spite of the fact that the observe is thin, it remains a high-end mechanical perfect work of art. It combines specialized complexity and stylish beauty.
Perpetual Calendar: What It Does (And Why It Matters)
Many observes appear day or date. A interminable calendar goes much advance. Once set accurately, it tracks:
- Day of the week
- Date
- Month
- Leap-year cycle (48-month indicator)
- Moon stage and age of the moon
This implies you don’t require to alter the calendar at the conclusion of brief months or February 29 — the component as of now accounts for shifting month lengths and jump a long time (up to the year 2100).
For a complicated observe with numerous signs, this is a gigantic comfort. It appears how advanced watchmaking can be: complex capacities covered up interior a thin, rich case.
A Observe That Equalizations Legacy and Cutting Edge Wearability
What the modern 36.5mm Traditionnelle UltraThin models do is offer a bridge between two universes. On one side: legacy, haute horlogerie, and classical watchmaking conventions. On the other: wearability and nuance for advanced wrists.
The unique motivation came from reference 43031, made in 1983. That observe had a 36 mm case and was known for appearing calendar complications in a compact, rich bundle. The modern 36.5 mm adaptation pays respect to that legacy — fair 0.5 mm bigger — whereas bringing advanced wrapping up, materials, and execution.
This implies collectors or regular wearers can appreciate a complicated observe that doesn’t rule the wrist. It remains tactful, classy — idealize beneath a suit or with formal outfits.
For Whom Is This Observe Designed?
This observe suits numerous sorts of wearers:
Classic observe partners who esteem refined plan and conventional complications.
Collectors needing a interminable calendar in a thin, wearable size.
People with littler wrists — 36.5 mm offers a comfortable fit.
Those who appreciate craftsmanship — the development wrapping up, Geneva Seal, and conventional watchmaking values.
Formal wear clients — the observe sets well with suits, commerce wear, and rich outfits.
It may not be a “sports watch.” It’s not built for plunging or harsh utilize. It is a dress / classic observe. It is implied to be acknowledged, worn carefully, and respected for its craftsmanship.
Price & Availability
The unused Traditionnelle Ceaseless Calendar UltraThin models were discharged around late 2025 as portion of the Maison’s 270thanniversary celebration.
The non–gem-set models (pink gold or white gold) are estimated around CHF 86,500. The gem-set white gold adaptation — with jewels — comands a higher premium due to the additional wrapping up and stones.
Availability may be constrained, given the request and complexity. For numerous, getting one will cruel holding up for allotment at authorized dealers.
Why This Discharge Things in 2025
The observe world in 2025 is overwhelmed with expansive, overwhelming, lively observes. Numerous have huge cases, striking plans, and bulky profiles. Against that scenery, the unused 36.5mm Traditionnelle UltraThin models stand out.
They remind us that classic watchmaking still has a put. They appear that complications — indeed the most advanced ones — can exist in exquisite, thin, wearable forms.
For a brand celebrating 270 a long time, this discharge feels like a reaffirmation of its roots. It is a articulation: mechanical dominance doesn’t continuously cruel measure or streak; in some cases it implies nuance, craftsmanship, adjust.
This observe may moreover impact industry taste. The request for “wearable complications” might develop. Maybe more brands will incline into classical extents and exquisite execution, or maybe than larger than average cases.
Final Thoughts
The Vacheron Constantin 36.5mm Traditionnelle Never-ending Calendar UltraThin is a observe that combines legacy, class, and mechanical brilliance.
It is a update that a observe can be both a complex timepiece and a unobtrusive extra. It offers a interminable calendar, moon-phase, programmed development, thin profile, and classic plan — all in a compact package.
If you adore high-watchmaking, appreciate craftsmanship, or need a dress observe with genuine horological esteem, this is a solid candidate.
Its measure is wearable, its complications are genuine, and its wrapping up is top-tier. It stands as verification that advancement doesn't continuously require intensity; some of the time, it fair needs calm elegance.
