Museum
Maestro GC39
Maestro GC39 is named after Maestro (Italian for Master): title awarded to Mr Gerald Charles Genta by the universe of luxury watchmaking.
- Reference: GC39-PL
- Movement: GCA39 Automatic Sliding Hours, registered Swiss patent
Technical information
- Movement
- GCA39 Automatic Sliding Hours, Registred Swiss patent
- Functions
- Minutes, Sliding Hours
- Case
- Platinum – 42 mm
Thickness: 12mm
Mr. Gerald Charles Genta original signature on case back. - Frequency
- 4 Hz precision
- Power reserve
- 42 hours
- Dial
- Three layers: mother of pearl rehaut and hours disk, brass and lapis center.
- Crystal
- Sapphire no glare
- Water resistance
- 30 meters
- Strap
- Black Rubber, Pyramids motif
- Indicators
- Blue painted indexes

The Sliding Hour
The Sliding Hour complication has long been the signature of Gerald Charles' founder and former designer: the legendary Mr. Gerald Charles Genta. The module of the GCA39 movement is a Swiss patent of Gerald Charels, developed and implemented under the supervision of Mr. Genta.
The signature Maestro case, this time in pure platinum, presents a convexity at 6 o'clock: the smile of its designer. The dial is extremely complex and articulates in several parts, combining mother of pearl, brass and lapis. The window at 12 o'clock welcomes the sliding hours disk that "jumps" every 60 minutes when the minute hand hits the hour.


Maestro GC39
Maestro GC39 is named after Maestro (Italian for Master): title awarded to Mr Gerald Charles Genta by the universe of luxury watchmaking.
The GC39 is an excellent example of Gerald Charles savoire-faire as it perfectly integrates mechanics and aesthetics. The result is a very distinctive, baroque timepiece.
This jumping hour reference was available in several precious materials like 18K gold and Platinum. Each edition was manufactured in a limited edition of only 25 pieces worldwide with the signature of the designer Genta engraved on every case-back. This reference is now preserved in the Maison's private Museum. It sometimes travels on exhibition around the world.