APF Edition — Natural Rubber Strap
The APF factory iteration of the Royal Oak Offshore 44mm reference 26405NR represents the current technical benchmark for this heavy-duty chronograph. By engineering a custom transfer module, APF achieves the correct running seconds at 12 o’clock while maintaining a precise case thickness of 16.2mm and a substantial 191.1g weight.
Powering the piece is the clone Calibre 3126 automatic chronograph movement. This mechanism utilizes a robust 7750 base modified to replicate AP’s distinct subdial layout, delivering reliable timing and an approximate 36-hour power reserve. The integration of genuine-spec movable end-links ensures the massive case conforms ergonomically to the wrist.
The 18K rose gold plated steel case exhibits the correct brushed and polished alternating finishing, sharply contrasting with the high-density black zirconia ceramic bezel. The dial features the signature Méga Tapisserie pattern, rendered in a sophisticated smoked taupe tone that closely approximates the genuine lacquer.
- Movement: Clone Calibre 3126 Auto Chronograph — Approximately 36 hours
- Case Material: 18K Rose Gold Plated Steel, 44mm diameter, 191.1g weight
- Bezel: Black Zirconia Ceramic, vertically brushed finish
- Crystal: Double-Sided AR Coated Sapphire
- Bracelet: Natural Rubber Strap with 18K rose gold plated tang buckle
- Water Resistance: 50m Stated — professional pressure test recommended before swimming
This reference is suited for collectors seeking a substantial, high-impact sports chronograph. The 44mm geometry and 191.1g mass demand a larger wrist, though the movable end-links significantly mitigate the lug-to-lug span.


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