FRENCH MANUFACTURE
CALIBER
Caliber entirely designed and developed in France by our watchmakers. Micro-components (bridges and mainplates) manufactured directly in our YEMA workshops in Morteau.
-3 / +7 SECONDS ACCURACY
Optimised mechanical accuracy with near chronometer-certified performance.
ULTRA-THIN MICRO-ROTOR CALIBER
Due to its smart architecture resulting in a contained thickness of just 3.70 mm
(26% thinner than an ETA 2824),
this new caliber equips sleeker and
refined cases.
70 HOURS POWER RESERVE
Enhanced power reserve thanks to innovating Tungsten micro-rotor and a large barrel.
FRENCH MANUFACTURE CALIBER
Caliber entirely designed and developed in France by our watchmakers. Micro-components (bridges and mainplates) manufactured directly in our YEMA workshops in Morteau.
ULTRA-THIN
MICRO-ROTOR
CALIBER
Due to its smart architecture resulting in a contained thickness of just 3.70 mm (26% thinner than an ETA 2824), this new caliber equips sleeker and refined cases.
-3 / +7 SECONDS ACCURACY
Optimised mechanical accuracy with near chronometer-certified performance.
70 HOURS POWER RESERVE
Enhanced power reserve thanks to innovating Tungsten micro-rotor and a large barrel.
CMM.20
CALIBRE MANUFACTURE MORTEAU 20
MOVEMENT
Mechanical automatic Ø 32,20mm
SELF-WINDING
Bi-directional tungsten
micro-rotor
FREQUENCY
4Hz (28 800 A/h)
POWER RESERVE
70 Hours
ACCURACY
-3 / +7 seconds
MAGNETIC RESISTANCE
Non-magnetic alloys
ULTRA-THIN CALIBER
3.70mm
REGULATING ORGANS
Glucydur balance wheel
SHOCK RESISTANCE
Incabloc® double cone
JEWELS
33
COMPONENTS
190
DECORATION
ALD (Atomic Layer Deposition)
OWN DESIGN LOCALLY MANUFACTURED
The Calibre Manufacture Morteau 20 (CMM.20) micro-rotor unique’s design offers high performance thanks to its clever architecture and
high-quality Franco-Swiss components. Entirely designed and developed by Olivier Mory in La Chaux-de-Fonds, the regulating organs are manufactured in Switzerland while the bridges and mainplates are manufactured by YEMA in its Morteau workshops.
MOVEMENT
Mechanical automatic Ø 32,20mm
SELF-WINDING
Bi-directional tungsten micro-rotor
FREQUENCY
4Hz (28 800 A/h)
POWER RESERVE
70 Hours
ACCURACY
-3 / +7 seconds
MAGNETIC RESISTANCE
Non-magnetic alloys
ULTRA-THIN CALIBER
3.70mm
REGULATING ORGANS
Glucydur balance wheel
SHOCK RESISTANCE
Incabloc® double cone
JEWELS
33
COMPONENTS
190
DECORATION
ALD (Atomic Layer Deposition)
OWN DESIGN LOCALLY MANUFACTURED
The Calibre Manufacture Morteau 20 (CMM.20) micro-rotor unique’s design offers high performance thanks to its clever architecture and high-quality Franco-Swiss components. Entirely designed and developed by Olivier Mory in La Chaux-de-Fonds, the regulating organs are manufactured in Switzerland while the bridges and mainplates are manufactured by YEMA in its Morteau workshops.
3,70mm ULTRA-THIN CALIBER
Due to its smart architecture resulting in a contained thickness of just 3.70 mm, this new micro-rotor caliber will equip much thinner and elegant cases.
TUNGSTEN MICRO-ROTOR
The bi-directional oscillating micro-rotor winding mass is made of a high density tungsten alloy in order to achieve the purpose of counterweight for this small volume but high weight micro-component, allowing optimized winding and securing a power reserve of 70 hours.
TUNGSTEN MICRO-ROTOR
The bi-directional oscillating micro-rotor winding mass is made of a high density tungsten alloy in order to achieve the purpose of counterweight for this small volume but high weight micro-component, allowing optimized winding and securing a power reserve of 70 hours.
GLUCYDUR BALANCE WHEEL
The balance wheel is made of Glucydur, a non-magnetic, low-thermal-expansion metal alloy which offers high resistant to deformation, corrosion, magnetic fields as well as low coefficient of thermal expansion, most suitable for precision elements that need a lot of dimensional stability.
ATOMIC LAYER DEPOSITION (ALD) DECORATION
The exceptional satin-finishing and micro-blasting treatment of the mainplate and bridges is coated in black using the latest ALD (or Atomic Layer Deposition) technology by a Swiss specialist in nanometric decorative coatings, supplier to high-end Swiss brands.
This revolutionary gaseous deposition process ensures a uniform coating with a precision of around one nanometre, preserving therefore the surface's satin-brushed decoration and the angles' polished finish.
TALENTED FRENCH WATCHMAKERS TEAM
Four talented French watchmakers, cumulating over 120 years experience at the most prestigious watch brands, have taken up the challenge of creating YEMA’s first Manufacture Calibers
OLIVIER MORY
WATCHMAKER
DEVELOPER
20+ years experience at Audemars Piguet, Sellita, Piaget, Cartier, Panerai, Skill, YEMA
PATRICK AUGERAU
SENIOR WATCHMAKING
ENGINEER
45+ years experience at Omega, Audemars Piguet, YEMA
JEAN-PAUL BOILLOT
MASTER
WATCHMAKER
40+ years experience at YEMA
NICOLAS BAILLY
TECHNICAL
WATCHMAKER
15+ years experience at Cartier, Pro Horlogerie, YEMA
TALENTED FRENCH
WATCHMAKERS TEAM
Four talented French watchmakers, cumulating over 120 years experience at the most prestigious watch brands, have taken up the challenge of creating YEMA’s first Manufacture Calibers
OLIVIER MORY
WATCHMAKER
DEVELOPER
20+ years experience at Audemars Piguet, Sellita, Piaget, Cartier, Panerai, Skill, YEMA
PATRICK AUGERAU
SENIOR WATCHMAKING ENGINEER
45+ years experience at Omega, Audemars Piguet, YEMA
JEAN-PAUL BOILLOT
MASTER
WATCHMAKER
40+ years experience at YEMA
NICOLAS BAILLY
TECHNICAL
WATCHMAKER
15+ years experience at Cartier, Pro Horlogerie, YEMA
LOCAL PRODUCTION
Over the past two years, YEMA has made significant investments aimed at insourcing a good part of its production and constantly improving the quality of its manufacturing processes by using new equipment as well as expanding and modernising its workshops and production lines
In addition, the Franco-Swiss Jura region being increasingly integrated, YEMA now works with new local partners to secure a more responsible and higher quality production.
All Manufacture movement components are manufactured in France and Switzerland within a range of 72km from Morteau by recognized craftsman in fine watchmaking. The caliber bridges and mainplates are manufactured in YEMA’s workshops in Morteau where final assembly of all components takes place.
COMPONENTS
MOVEMENT DESIGN
MOVEMENT
COMPONENTS
ASSEMBLIES
ORIGIN
SWITZERLAND
FRANCE +
SWITZERLAND
FRANCE
COMPONENTS
ORIGIN
Movement design
SWITZERLAND
Movement components
FRANCE + SWITZERLAND
Assemblies
FRANCE
A DYNAMIC REGIONAL WATCHMAKING ECOSYSTEM
YEMA workshops are based in Morteau, the cradle of French watchmaking, a few steps from the Swiss watchmaking region. This cross-border watchmaking community concentrated along the Jura mountains has gradually transformed into a true regional ecosystem recognized as Intangible Cultural Heritage by the UNESCO in 2020.
YEMA MANUFACTURE
COLLECTION
Discover all YEMA timepieces equipped with our Manufacture Calibers.
OLIVIER MORY
Watchmaker Developer
“With friendly and private atmosphere, YEMA is a place to meet friends, bump into old friends, or sit quietly and read newspapers. Known since 2016 for great breads, croissants, and traditional espresso, Boulanger is now expanding to other modern types of cakes and soft drinks. Boulanger is also well-known for its great customer service and excellent delivery service. Have a cozy time at Boulanger!“
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