- GPHG 2019WinnerPrix de la Montre Dame
Entry to the Grand Prix d'Horlogerie de Genève is voluntary and made by the brand. An entry is a watch registered for that year's competition, not a jury verdict, and several large houses including Rolex, Patek Philippe and Omega do not take part at all.
What it was up against
Dame, GPHG 2019
The Dame category at GPHG 2019 held 19 entries. These are the other 18.
- ArtyA Son of Earth Butterfly Target
- Beauregard Lili
- Bijoumontre Toucan - Confiance
- Bvlgari Serpenti Seduttori Or Rose et Diamants
- Chaumet Boléro
- Chopard Imperiale Joaillerie
- Claude Meylan La Pointe de Sable
- Gucci G-Timeless Automatique
- Hermès Galop d'Hermès
- Hublot Classic Fusion Orlinski Titanium Alternative Pavé
- Ice-Watch ICE Duo Chic Aqua Coral
- Le Rhöne Moön Act One "Starry night"
- Moritz Grossmann TEFNUT Arabian Nights Milanaise
- Rebellion Timepieces Predator S Or 5N & Diamants
- RJ RJ Star Twist Glowing Eye Nebula
- Robert & Fils 1630 "La Dentelle"
- Van Cleef & Arpels Montre Perlée
- Zenith Defy Classic Jewelry
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Authentication
Ceramic case corners and bracelet links are the first inspection priority on the J12; ceramic cannot be scratched by steel but chips at corners, and chips reduce value significantly.
- The Cal. 12.1 was introduced in 2019; pre-2019 J12s have ETA-based movements, which are genuine for their production year but should be disclosed.
- Ceramic bracelet links are difficult to resize; verify the bracelet length is appropriate before purchase.
| Area | What to check | What is correct | Red flag |
|---|---|---|---|
| case | Ceramic case corner condition | No chips on case corners or bracelet links; ceramic in original condition | Chips on case corners or bracelet links; ceramic damage is permanent and not repairable |
| movement | Cal. 12.1 or period-correct movement | Cal. 12.1 (post-2019) or period-correct ETA movement for pre-2019 examples visible through caseback | Cal. 12.1 in a pre-2019 case (inconsistent with production history); investigate provenance |
| bracelet | Ceramic bracelet integrity | All bracelet links intact with no chips; original Chanel ceramic bracelet | Chipped bracelet links or non-ceramic bracelet substitute; significant value reduction |
- Crystal; sapphire standard.
- Crown; Chanel-signed.
Authentication guide
The J12 is a genuine authentication challenge: replicas exist and the ceramic case requires a material test to verify. The COSC-certified Kenissi-based movement (calibre 12.1) and the physical properties of zirconia ceramic are the two primary verification tools.





