The New Alternance 10 Caliber From Perrelet, The Driving Force Behind Self-Sufficiency

In adopting the state-of-the-art Alternance 10 (A10) caliber, entirely produced within the group to which it belongs, the Perrelet brand has taken a decisive step on the path towards autonomous production

In adopting the state-of-the-art Alternance 10 (A10) caliber, entirely produced within the group to which it belongs, the Perrelet brand has taken a decisive step on the path towards autonomous production - the ultimate goal being to equip its entire range with Manufacture-made movements.


Perrelet, a pioneer of mechanical watchmaking, is a Swiss brand specializing in the creation of automatic watches. Since 2004 it has belonged to the Spanish entrepreneur Miguel Rodriguez, who also owns the Festina group. The brand is thus in a prime position to benefit from the group's industrial infrastructure thanks to the contribution of sister companies such as Soprod, IMM Ineltec, MHVJ and Astral, and thus have access to exclusive automatic movements
of superior quality.

"Today more than ever, having in house means of developing and producing horological specialties represents a great opportunity. Production autonomy is an extremely important issue and an aspect that enables us to remain in the avant-garde of our field. Witness the recent acceleration we have undertaken in diversifying the Double Rotor modules. The A10 movement represents a milestone achievement for us; we are well on the way towards complete
independence" says CEO Fausto Salvi.

A10

Stemming from several years of research and development, the A10 caliber is now produced entirely within the group to which Perrelet belongs, including its new escapement featuring optimized efficiency, and the balance-spring. The automatic 11 ½''' movement, beating at 28,800 vph, is a robust and reliable caliber that has earned Chronofiable* certification and which may, on request, also benefit from COSC chronometer certification. It comes in several variations - three hands plus date, three hands with visible balance, along with skeletonized models. They also boast a broad range of additional functions which to date includes Large Dates, Dual Time-Zone with day-night indicator, Power Reserve, 24-hour indicator, Chronograph and Small Seconds. The A10 also incorporates custom-made complications and in particular Perrelet's signature Double Rotor modules.

A10 FOR Perrelet

The A10 calibers with integrated Double Rotor are produced exclusively by Perrelet, which holds the patent for this system. Among the watches in the collection, the first Perrelet watch equipped with the new movement is the Peripheral Double Rotor, the latest of the Double Rotor models. A series of personalized finishes further enhance the 100% Manufacture-made movement. The upper rotor, which rotates around the periphery of the movement, features
three openings providing an opportunity to admire its oscillations. The open worked lower rotor provides a broader view of the brand's distinctive "tapestry" motif adorning the bridges. It is adorned with the P signature and a Côtes de Genève motif.

This step heralded the start of what is set to be a fastpaced integration process. Alternance 10 will equip all the new models launched in 2012, and will in due course replace all the other calibers used by the House.

Perrelet is continuing to write new chapters in its own history and in that of watchmaking in general, as the producer of watches with fully Manufacture-made movements, enhanced by dedicated Fine Watchmaking finishes. Caliber A10 brings the assurance of freedom of action that is fundamental in supporting the creativity it consistently demonstrates in its chosen field of automatic movements.

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