Gerald Charles Maestro GC39 25th Anniversary Ed | LE100 | Pre-Order

PRE-ORDER. Delivery May/June 2025

The Maestro GC39 25th Anniversary Edition pays homage to the original 2005 GC39 by Mr. Gérald Charles Genta, reintroducing the rare jumping hours complication in an exclusive limited edition of just 100 pieces. This masterpiece features a striking lapis lazuli dial, meticulously crafted over a 24-hour process, encased within a polished Grade 5 titanium case measuring a sleek 11mm thick. The Meta Guillochage engraving technique enhances the dial’s intricate multi-ray star motif, adding unparalleled depth and texture. The 12-hour disc at 12 o’clock advances instantaneously every hour, while the anti-clockwise jumping hours function ensures a distinctive reading experience. Complemented by a Royal Blue vulcanized rubber strap with a Clous de Paris pattern and a polished butterfly deployant buckle, the watch achieves both elegance and durability, embodying the brand’s signature aesthetic and technical innovation.

Available now for pre-order. 
Ref. GC39-TNPS-LSEN-RSDP-REM

Powered by the Swiss Manufacture 4.0 Caliber, the Maestro GC39 25th Anniversary Edition is engineered for precision, featuring a 50-hour power reserve and a frequency of 28,800 vibrations per hour (4Hz). The patented jumping hours mechanism, which requires a force up to 70,000 times greater than a conventional three-hand movement, demonstrates the brand’s horological mastery. The movement’s bridges are adorned with colimaçon, côtes de Genève, and perlage finishes, visible through the sapphire case back. A golden oscillating weight, decorated with the 25th Anniversary logo and the Gerald Charles honeycomb motif, further elevates this exceptional timepiece. Designed for both collectors and connoisseurs, the Maestro GC39 25th Anniversary Edition blends technical brilliance with the legacy of one of watchmaking’s most celebrated designers.


TECHNICAL SPECIFICATIONS
Calibre
- Swiss manufacture 4.0 calibre
Functions
Anti-clockwise jumping hour with concentric central minutes
Thickness
6.15 mm
Number of components
265
Frequency
28'800 A/h - 4Hz
Power reserve
50 hours
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.
Case
Polished grade 5 titanium
Dimensions
- 42 mm width
- 42 mm length
- 11 mm thickness
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 (“Maestro” original design by Mr. Gérald Charles Genta)
- See-through case back
Water resistance
- 10 ATM/100m
Dial
Lapis Lazuli center surrounded by a Colormix blue frame and black minute track
- Dial features meta-guillochage (propiertary technique)
Indexes
- Polished Colormix blue cabochon indezes and sword-shaped hands complete the design with the distinguished Gerald Charles Genève logo
Strap
- Blue HNBR Vulcanized Rubber with vanilla scent
- Clou de Paris on one side and the GC logo’s tapisserie on the back. One fixed loop and one free.
- Original design by Mr. Gérald Charles Genta
- Length: S: 175mm, M: 190mm, L: 212mm
- Width: 22-20mm; thickness: 5-3mm
Buckle
- Royal Blue vulcanised rubber strap
- Clous de Paris pattern on top with a subtle Gerald Charles logo tapisserie on the reverse.
- Polished butterfly deployant buckle


Oster Jewelers is an Authorized Angelus Watch Retail Partner