Voutilainen Vingt-8 Prototype unique piece | Cal. 28 | platinum

Regular price Price on request
Brand: Voutilainen
Model: Prototype Vingt-8 - Unique Piece
Movement: manual-winding
Case material: platinum
Case size: 39 mm
Crystal: sapphire front and case-back
Bracelet/strap: blue alligator strap with tang buckle
Functions: Time-only: Hours, Minutes, Sub-seconds
Features: Display Back, Blue Hands, Guilloche Dial
This unique, prototype Voutilainen Vingt-8, is perhaps the most important and impressive Vingt-8 that has come onto the market. It is numbered 000 and is the only Vingt-8 ever made that has been issued a certificate from the Besançon Observatory, representing the pinnacle of chronometry in watchmaking. It comes as a full set, with box and papers, a certificate from Besançon and a personal letter from Kari himself, certifying the watch.

While Voutilainen’s early Obervatoire watches, using the Peseux 260 ebauche were certified by the Besançon Observatory, his later in-house Cal. 28 movements were not, with this piece as the exception.

To be awarded a certificate from the Besançon Observatory, the watch had to go through a stringent testing period where the tolerances for error is much finer than any other standard, including certified chronometers from COSC. The certificate received with this watch states the actual performance of the movement, and its status as an observatory chronometer.

In order to achieve this feat, the movement itself was modified by Kari to be able to pass the test and in the letter written he stated:

“This particular watch, number 000, represents the very first time that a watch using my new escapement design has been issued a certificate from Besançon Observatory. For these Besançon Observatory trials, the movement of number 000 has undergone several notable changes concerning the weight of the balance itself, the configuration of balance screws as well as the design of certain escapement parts. These optimisations represent a further refinement of my dual escapement wheel concept and have also led to a notable decrease in power consumption of the entire movement design.”


This example, delivered in 2014, features a 39 mm platinum case and Voutilainen’s distinctive teardrop lugs. It has a salmon coloured dial, made of silver and engine turned with three different guilloché patterns. It features applied arabic numerals and index markers, and blue steel Breguet hands. The modified in-house Cal. 28 movement has been expertly finished and elaborately decorated, featuring a frosted baseplate and an engraved line motif on the bridges made from gold. This style of decoration from Voutilainen is not often seen and is representative of the unique quality of this example.

WATCH XCHANGE is the exclusive platform to be endorsed by Kari Voutilainen to clients and collectors, looking to sell one of their unique timepieces. Viewings can be arranged by appointment in Central London. 
Year: 2014
Condition: A+
Warranty: 12 months full
Box: original Voutilainen box
Paperwork: original papers from Voutilainen
Availability: now
UK Delivery: free next day
Overseas delivery: 3-5 working days
Returns: 14 days
Price: £70,000

All of our pre-owned watches have undergone thorough mechanical inspections, including being ultrasonically cleaned, serviced and resealed if appropriate and tested for at least four days, to ensure they meet our highest timekeeping standards. Our pre-owned and vintage watches are covered by a full, or a limited twenty-four month warranty. For example, due to their age, some vintage watches should not be subjected to the same conditions as when they were new. Please see our Terms & Conditions for further information. 

All of our new watches are covered by the warranty from the original manufacturer. Please contact us for further information.

We offer worldwide delivery on all of our watches.

If ordering from the UK or Europe before 1 PM, your watch will be sent the same working day. The courier will depend on the value of the watch, with all watches delivered the next working day.

If ordering from outside Europe, delivery will depend on choice of courier and destination. 

You can cancel your order without giving any reason, within 14 days from the day the watch has been delivered to you.