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 The Vianney Halter Classic Janvier N°1 Moon And Sun, The Astronomical Ballet Automatic Watch




Type: Astronomical complication
Functions: hour, minute, small seconds, walking equation of time, moon phase, lunar calendar, annual calendar
Size: 40 x 40 x 12.5 mm
Material: Platinum
Movement: in-house developed
Calibre VH110
Balance frequency: 28’800 v.p.h.
Components: around 460, including 80 for the Equation of Time Complication
Jewelling: 35 rubies
Winding: automatic, fitted with the patented VH "mystery mass“ winding rotor
Power reserve: 40 hours
Total weight: 175 gr, including 145 gr platinum

Circa: 2008

Limited Series: 1 of 12



This watch is like new, scarce to find in this condition.


SKU: 07152023-625000
  • Classic Janvier N°1 Grande Complication Men's Automatic Watch

    This exquisite timepiece, the Vianney Halter Janvier, is a true masterpiece of fine watchmaking. With its classic style and elegant design, it is sure to turn heads and impress even the most discerning collector. Crafted by renowned Swiss watchmaker Vianney Halter, this watch is an actual work of art featuring a stunning combination of form and function.The Janvier is one of only twelve made, making it a unique and exclusive piece. From the precision movement to the intricate details of the dial and case, every aspect of this watch is a testament to the skill and passion of its creator. Whether you are a seasoned collector or appreciate the finer things in life, the Vianney Halter Janvier is a watch that will not disappoint.CLASSIC JANVIER N°1MOON AND SUN, THE ASTRONOMICAL BALLETName: CLASSIC JANVIER N˚1Type: Astronomical complicationFunctions: hour, minute, small seconds, walking equation of time, moon phase, lunar calendar, annual calendarSize: 40 x 40 x 12,5 mmMaterial: PlatinumMovement: in-house developedCalibre VH110Balance frequency: 28’800 v.p.h.Components: around 460, including 80 for the Equation of Time ComplicationJewelling: 35 rubiesWinding: automatic, fitted with the patented VH „mystery mass“ winding rotorPower reserve: 40 hoursTotal weight: 175 gr, including 145 gr platinumIn 2008, to celebrate his ten years of independent creation, Vianney Halter presented the Classic Janvier N°1, a limited series of 12 platinum watches staging time, walking equation of time, and moon cycle.The two astronomical complications of the caliber VH110 are enclosed in a somewhat constrained case and a unique riveted porthole, the signature of Vianney Halter’s Future Past style from the Antiqua model back in 1998.This grande complication model is a tribute to French watchmaker Antide Janvier (1751-1835). In his times, Janvier was considered the watchmaking enfant terrible due to his short temper and utter genius.He was nicknamed « the clockmaker from the stars » because he excelled in creating horological devices displaying the movement of celestial bodies.Time was based on the sun’s position in the celestial vault. Our contemporary system of timekeeping, using 24 equal hours, does not take the variations of the part of the sun into account. Thus, the time indicated on a watch differs from the time one can read using the part of the Sun. This difference is called the « equation of time.This difference in time slowly varies from +14 minutes to -16 minutes at our latitudes. The equation of time is a consequence of Earth’s orbit anomaly (it is not a perfect circle) and its rotation axis tilt.Nowadays equation of time may seem futile but could have dire consequences when the precise location of ships at sea is calculated using three things: the moment of the local sun’s height on the horizon, the reference time given by the marine chronometer, and a correction via the equation of time.Vianney Halter added a Sun-shaped minute hand that closely follows the average time, blued steel minute hand to stage the complication. With this configuration, a simple glance allows the wearer to know both exact solar time and civil average time simultaneously without adding or subtracting anything. Four times per year, those minute hands overlap.Displaying the equation of time requires the knowledge of the date. To achieve that, a hand-engraved gold ring carrying 365 graduations and equinoxes and solstices allows the wearer to precisely set the day from where the equation is calculated.Vianney Halter uses two hands to display the moon cycle, pushing the number of indicators to five on one central axis. The bottom hand holds a hand-engraved platinum disc, and the top hand has a black disc that gradually overlaps the platinum one, displaying the aspect of the moon as it appears in the night sky.The layout of the walking equation of time, meantime, and moon phases is inspired by a desk regulator made by Antide Janvier in 1788 for King Louis XVIth.The delicate walking equation mechanism, including the equation cam, is evident on the back of the watch and through the patented mysterious rotor.The Classic Janvier is an automatic watch whose complications are year-long cycles, which means it must be wound or worn regularly to avoid frequent resetting. The look is delivered with a winding display box specially developed by Vianney Halter and decorated by marquetry artist Bastien Chevalier.The Classic Janvier follows Vianney Halter’s philosophy: user simplicity instead of complexity, thanks to a functional display, uncompromising aesthetics, and breathtaking mechanics.


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    Thank you for considering investing with Kaufman & Kaufman. We appreciate and value your business. However, if you are not completely satisfied with your investment, we are here to help. Please see the full details below regarding our return and refund policy and process.

    Policy Details

    You can return your investment anytime from the date you receive it.

    Any item from Kaufman & Kaufman can be returned, no questions ever.

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    Restocking Fees

    All returns are subject to a restocking fee of 15%. Exceptions, Kaufman & Kaufman, does not charge a restocking fee if Items are damaged or defective.

    Process Details

    To return your investment from Kaufman & Kaufman, place the item(s) securely in its original packaging, if possible. Please ship your return to the following address:


    Attn: Returns

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    Cleveland, TN 37311-7304





    After receiving your return and inspecting the condition of your item, Kaufman & Kaufman will process your return. We will notify you by email when your return has been received, processed, and refunded. Your asset concierge is always available to assist and will be with you throughout the process.


    If you have any questions concerning our return policy or need assistance, don’t hesitate to contact us at, call us at 1-800-798-9636, or visit us online at

    Thank you for investing with Kaufman & Kaufman!

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