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Batch 1 Sold Out — Batch 2 Pre-Order Open
The first batch of the F77 MK2 Black Opal has completely sold out. This listing is a pre-order for Batch 2. Reserve yours now to secure a piece from the next allocation.
Batch 1
Sold Out
Batch 2 — Estimated Delivery
Late 2026 / Early 2027
Created to celebrate Nivada Grenchen's 100th anniversary, the F77 MK2 Black Opal brings a distinctive natural stone dial to the brand's 1970s-inspired integrated design.
Against a dark base, flashes of blue, green, red and violet shift with the light, revealing the character of the Black Opal. Each dial has its own colour, pattern and texture, making every watch unique.
The 38mm 316L stainless steel case preserves the F77's signature silhouette. Inside, the Swiss La Joux-Perret G101 automatic movement delivers a 68-hour power reserve, with its finishing visible through the sapphire exhibition caseback. A double-domed sapphire crystal with anti-reflective coating and 100-metre water resistance complete the design.
| Feature | Details |
|---|---|
| Dial | Natural Black Opal with polished silver-tone applied indexes and white luminous dots |
| Case diameter | 38mm |
| Case thickness | 12.20mm |
| Lug-to-lug | 46.2mm |
| Case material | 316L stainless steel |
| Crystal | Double-domed sapphire with anti-reflective coating |
| Caseback | Sapphire exhibition caseback |
| Crown | Signed |
| Movement | Swiss La Joux-Perret G101 automatic, no-date version |
| Power reserve | 68 hours |
| Frequency | 28,800 vibrations per hour (4 Hz) |
| Jewels | 24 |
| Functions | Hours, minutes and central sweeping seconds |
| Water resistance | 10 ATM / 100 metres |
| Origin | Swiss Made |
| Warranty | Two-year manufacturer's warranty |
The F77 MK2 Black Opal is available in three strap and bracelet options:
| Option | Reference | Price (USD) |
|---|---|---|
| Steel bracelet | 6806A77 | $1,880 |
| Velcro canvas strap | 6806A77-BC | $1,680 |
| Black rubber strap | 6806A77-DR | $1,680 |
Each natural stone dial is unique. Variations in colour, pattern and texture are inherent to the material, and the watch delivered may differ from the product images.
Santurce Collection is an authorized dealer of Nivada Grenchen.
