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Chronograph movement with automatic winding, reference C3057

The logical choice of a robust, legendary caliber whose quality has been tried and tested for several decades

All watch enthusiasts are familiar with the famous VALJOUX 7750 and its derivatives. This movement with an integrated (cam-actuated) chronograph mechanism is accurate and highly resistant, leading many great watch brands to use it in their professional and sports models. Generations of watchmakers have trained on this movement, which represents a true landmark in “Swiss Made” industrial quality and a sign of quality and enduring longevity.

The manufactures capable of producing this entire caliber and particularly its regulating organ (escapement) are few and far between. The Concepto Watch Factory is one of them, which not only offers it in its original configuration, but also proposes an entire spectrum of specific “à la carte” improvements, giving clients the best of both worlds: industrial reliability and exclusive customization.

Designers and technicians studied the students’ specifications to shape an exclusive and contemporary version of the legendary motor. The upper bridges have been semi-openworked to highlight its anthracite grained finishes and its date disk is offered in a skeletonized version.

The three counters of the chronograph function and the perpetual seconds displays are also openworked. Thanks to a specific development by the Concepto Watch Factory, the minute counter is located at 3 o’clock. This “Tri-Compax” arrangement is highly appreciated for its balance and readability.

The regulating organ—the true heart of the movement—incorporated in the C3057 caliber belongs to the “TOP” category. Set to oscillate at 28,800 vibrations per hour (balance frequency of 4 Hz), the caliber provides a much higher than average standard of timekeeping. Last but not least, most of the 245 components that make up this exclusive manufacture movement remain biocompatible with those of the VALJOUX 7750, allowing watchmakers and service centers across the world to perform repairs easily and quickly in the event of an accident.

The logical choice of a robust, legendary caliber whose quality has been tried and tested for several decades

All watch enthusiasts are familiar with the famous VALJOUX 7750 and its derivatives. This movement with an integrated (cam-actuated) chronograph mechanism is accurate and highly resistant, leading many great watch brands to use it in their professional and sports models. Generations of watchmakers have trained on this movement, which represents a true landmark in “Swiss Made” industrial quality and a sign of quality and enduring longevity.

The manufactures capable of producing this entire caliber and particularly its regulating organ (escapement) are few and far between. The Concepto Watch Factory is one of them, which not only offers it in its original configuration, but also proposes an entire spectrum of specific “à la carte” improvements, giving clients the best of both worlds: industrial reliability and exclusive customization.

Designers and technicians studied the students’ specifications to shape an exclusive and contemporary version of the legendary motor. The upper bridges have been semi-openworked to highlight its anthracite grained finishes and its date disk is offered in a skeletonized version.

The three counters of the chronograph function and the perpetual seconds displays are also openworked. Thanks to a specific development by the Concepto Watch Factory, the minute counter is located at 3 o’clock. This “Tri-Compax” arrangement is highly appreciated for its balance and readability.

The regulating organ—the true heart of the movement—incorporated in the C3057 caliber belongs to the “TOP” category. Set to oscillate at 28,800 vibrations per hour (balance frequency of 4 Hz), the caliber provides a much higher than average standard of timekeeping. Last but not least, most of the 245 components that make up this exclusive manufacture movement remain biocompatible with those of the VALJOUX 7750, allowing watchmakers and service centers across the world to perform repairs easily and quickly in the event of an accident.

Self-winding C3057 chronograph movement

Tri-Compax Chronograph

Manufactured calibre 100% Swiss-made

Compatible with the Valjoux 7753 chronograph movement

Panel of components

CALIBER C3057, technical specifications and functions

Technical specifications :

Mechanical movement with automatic winding by a ball-bearing-mounted central oscillating mass

Total thickness of movement : 8.40 mm

Diameter : 30.40 mm (13¼)

Balance-wheel frequency : 28,800 vibrations per hour (4 Hz)

Number of jewels : 27

Number of components : 245

Power reserve : 48 hours

Regulating organ (escapement) : Top chronometer quality

Cam chronograph mechanism, integrated into the movement

Finish on upper bridges : semi-openworked and grained

Date disk : laser-cut (skeletonized)

Functions :

Hours and minutes displayed by central hands, small seconds at 9 o’clock. Central 60-second chronograph counter, 30-minute counter at 3 o’clock and 12-hour counter at 6 o’clock (Tri-Compax display).

Date function with aperture positioned at half past four, skeletonized-type openwork, with rapid crown correction.

Crown that activates the winding stem, in three positions: 1) operation and manual winding position (34 turns to fully wind); 2) rapid date correction; 3) time setting with stop seconds.

Chronograph activation push-piece (start-stop) at 2 o’clock and zero-reset push-piece at 4 o’clock.

contact

contact@what.ch
Wild Horlogists Project
1a, Rue du Versoix
CH – 2300 La Chaux-de-Fonds

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