Gerald Charles

Maestro 8.0 GC Sport Squelette


The Maestro 8.0 GC Sport Squelette watch combines Mr. Genta's unmistakable Maestro case shape with an extraordinary open-worked movement. This skeleton watch truly celebrates the "art" of the mechanical timepiece and was created by contemporary and world-renowned watch designer Octavio Garcia. The case of the Maestro 8.0 GC Sport Squelette is based on the Maestro 2.0 Ultra-Thin model, and it has been slimmed down to 8.35mm, to enhance the watch's ergonomics further and push elegance and performance to their limits. The Maestro 8.0 GC Sport Squelette is water-resistant to 100 metres.



Detail of Dial

See all variations


GCA 5482 ultra-thin in-houe development caliber


Central hours, minutes hands

Power reserve

50 hours

Water Resistance

10 ATM/100 metres


GCA 5482 automatic open-worked caliber

Completely redesigned by Octavio Garcia, based on the previous design of the Maestro 8.0 Squelette, this new skeletonised movement fits perfectly within the asymmetrical shape of the Maestro case.


Automatic 2 hands, 50-hour power reserve with micro-rotor


30.00mm diameter, 2.60mm total thickness

Number of components

160 pieces


21’600 A/h - 3Hz


Decentered micro-rotor in 22K rose gold 4N; finishings: brushed snailturn pattern on the dial side, sandblasted base and upper layer brushed snailturn pattern with honeycomb motif on the back


Bespoke screws in stainless steel with bleuie finishing, patented design

Shock resistance

5G shock resistance, tested with 5 axes robotic arm. Incabloc® anti-shock system


Dial-face bridge: vertical brushed in Rhodium plating; other bridges: sandblasted bridges with diamond cut, polished anglage at 45° degree in Rhodium plating


Sandblasted Grade 5 Titanium case with left-side screw-down crown

The GCA 5482 caliber has been rotated by 180° to allow the crown to be placed on the left of the Maestro Case. As a result, the balance wheel is now located at 1 o'clock, capturing all the power, while the train wheel follows the movement downwards consequently.


Width: 39.00mm. Lenght: 41.70mm. Thickness: 8.35mm. Entrecorne: 22.00mm.


35 Pieces


Grade 5 Titanium


Sandblasted case, vertical brushed case back.


original design by Mr. Gérald Charles Genta


Screw-down crown with Clous de Paris finish and embossed logo


Carved with CNC numeric control machinery. Asymmetric polygon with smooth edges

See-through case back

Discover the Sport