This Royal Oak 26574ST-inspired model draws from the design language of the Audemars Piguet, combining high-precision case finishing with a fully functional perpetual calendar aesthetic.
Case Design
The watch features a 41mm stainless steel case constructed from 316L steel, CNC-machined with high precision to ensure consistent density and structural integrity closely aligned with original specifications.
Movement
Equipped with a custom Cal.5134 automatic movement, designed to replicate the full functional layout of the perpetual calendar system, including date, day, month, and moon phase display with operational functionality.
Dial Design
The dial is carefully color-matched to original reference tones, delivering a balanced and refined visual presentation consistent with the Royal Oak aesthetic.
Case Construction
The case is built in a three-part structure consisting of bezel, mid-case, and caseback. Each component is finished with brushed and polished surfaces, emphasizing angular geometry and refined metallic texture.
Bracelet Options
Multiple strap configurations are available, including stainless steel bracelet, rubber strap, and leather strap options, offering versatile styling choices for different wearing scenarios.
Overall Style
This model reflects the signature sports-luxury identity of the Audemars Piguet Royal Oak perpetual calendar design, focusing on structural precision, functional completeness, and integrated aesthetic execution.




