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Discover the collections at the official retailers around the world and book your visit at Gerald Charles Atelier Genève, a space for watch collectors to get to the heart of our Maison.
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Uncommon jumping hours complication
Inspired by the original GC39 "montre à guichet" of Mr. Genta
The new Maestro GC39 25th Anniversary Edition revives the legendary sliding-hour complication.
New case dimensions: 42x42mm
Maestro GC39 25th Anniversary Edition’s case maintains the iconic square shape of the original GC39, while being remarkably slim: just 11mm thick. Crafted from polished Grade 5 titanium, it retains the lightweight, ergonomic qualities for which the Maestro is celebrated, offering both durability and supreme comfort.
Dimension
Width: 42mm Lenght: 42 mm Thickness: 11mm
Components
34 Pieces
Material
Polished Grade 5 Titanium, a challenging material to work into Maestro case shape
“Maestro” original design by Mr. Gérald Charles Genta
Crown
Screw-down crown with Clous de Paris finish and embossed logo in Grade 5 Titanium
Construction
Carved with CNC numeric control machinery. Asymmetric polygon with smooth edges
See-through case back
Swiss Manufacture 4.0 Calibre Jumping Hours developed and patented in-house
In developing the Swiss Manufacture 4.0 Calibre Jumping Hours, the Maison’s engineers faced significant physical challenges: the jumping hours disc, 25 times heavier than a conventional hour hand, must advance instantaneously once every hour. According to Newton’s second law, this sudden acceleration demands a force orders of magnitude greater, up to 70,000 times, than that required in a traditional three-hand movement.
Type
Anti-clockwise jumping hour instant with concentric minutes
Thickness
6.15 mm
Number of components
265
Frequency
28’800 A/h - 4Hz
Oscillating weight
Golden unidirectional central oscillating weight decorated with the 25th Anniversary logo. Two layers of finishings: sandblasted base, colimaçon and soleil brushed top with the Gerald Charles “honeycomb” motif
Shock resistance
5G shock resistance, tested with 5 axes robotic arm. Incabloc® anti-shock system
Finishing
Bridges finely decorated with colimaçon, côtes de Genève and perlage finishes. Rhodium-plated module wheels.
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