The Yema Granvelle CMM.20 represents one of the most refined expressions of contemporary French haute horlogerie. With its in-house micro-rotor automatic movement, an ultra-thin case, and a richly crafted guilloché dial, this timepiece combines tradition, innovation, and craftsmanship in a sophisticated and harmonious design.

Designed for enthusiasts of luxury mechanical watches and for those seeking an elegant, versatile, and technically advanced timepiece, the Granvelle CMM.20 stands out for its balance between classic aesthetics and modern engineering.

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Small Seconds Dial: A Tribute to Traditional Horology

One of the most fascinating elements of the Yema Granvelle CMM.20 is the small seconds sub-dial at 9 o'clock, which adds a refined and vintage touch to the dial.

This classic complication is not just aesthetic: it improves legibility and gives character to the layout, introducing a slight asymmetry that makes the dial more dynamic and interesting.

A Mesmerizing Guilloché Dial

The rich guilloché dial with concentric pattern and sunray finish captures light in an extraordinary way, creating depth and visual movement.

Framing this artisanal masterpiece is a ring with carved stainless steel hour markers, an elegant solution that plays with shadows and reflections, lending sobriety and refinement.

The faceted and polished dauphine hands glide gracefully over the dial, completing a harmonious, clean, and highly legible ensemble.

The result is a dial that does not just "tell the time," but transforms the passage of time into a contemplative visual experience.

Slim Design and Mechanical Precision: The CMM.20 Caliber

The heart of the Yema Granvelle CMM.20 is the Caliber Micro-Rotor Manufacture Morteau 20 (CMM.20), an automatic movement developed in-house by Yema.

Thanks to the integrated micro-rotor, the movement's thickness is minimized, allowing for an ultra-thin case of just 8.60 mm.

Technical Specifications of the CMM.20 Caliber

• Movement: automatic with micro-rotor on ball bearings

• Frequency: 28,800 vibrations/hour (4 Hz)

• Accuracy: -3/+7 seconds per day

• Functions: hours, minutes, small seconds

• Power reserve: 70 hours

This combination ensures not only elegance on the wrist but also reliability and high-level performance.

39 mm Case: Architectural Inspiration and Comfort on the Wrist

The 39 mm cushion-shaped case draws inspiration from the arches of the Palazzo Granvelle in Besançon, a city symbolic of French watchmaking and home to Yema's workshops.

Made of vertically brushed 316L stainless steel, with polished bevels and knurled edges, the case catches the light from every angle, creating an elegant and dynamic play of reflections.

Case Features

• Material: 316L Stainless steel

• Diameter: 39 mm

• Thickness: 8.60 mm

• Lugs: 20 mm

• Glass: sapphire with anti-reflective (AR) treatment

• Crown: push-down in polished stainless steel with engraved YEMA logo

The cushion-shaped crown with the historic engraved "Y" is an iconic detail that harks back to the brand's historical identity.

The Sapphire Caseback: A Window to the Manufacture

The exhibition sapphire caseback allows admiration of the CMM.20 caliber in all its beauty.

The rhodium-plated bridges are decorated with radiating Côtes de Genève, creating a shimmering and dynamic effect when the movement is in operation.

This attention to detail reflects Yema's commitment to creating movements that are not only functional but also aesthetically extraordinary.

Water Resistance

The watch offers water resistance of:

• 5 BAR / 50 meters

It is therefore suitable for daily use (hand washing, light rain), but not recommended for diving or underwater activities.

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