BBSF Edition — Integrated Stainless Steel Bracelet
BBSF’s execution of the 26607BC.OO.1220BC.02 Royal Oak Perpetual Calendar addresses the historical challenge of replicating the complex dial layout while maintaining an acceptable case thickness. By achieving an 11.4mm profile and a substantial 180g weight, this iteration closely approximates the tactile presence of the genuine white gold piece.
The clone Caliber 5134 automatic movement drives the intricate sub-dial displays, managing day, date, month, and moonphase functions. Unlike earlier modified base calibers, this architecture integrates the perpetual calendar module more efficiently, resulting in a slimmer case. Approximately 36 hours of power reserve ensures steady daily performance when worn consistently.
Machined from solid stainless steel, the 41mm case exhibits the signature brushed and polished alternating finishing characteristic of the Royal Oak lineage. The black dial features a precise Grande Tapisserie pattern, accented by crisp subdial typography that contrasts effectively against the dark background.
- Movement: Clone Caliber 5134 Automatic — Approximately 36 hours
- Case Material: Stainless Steel, 41mm diameter, 51mm lug-to-lug, 180g weight
- Bezel: Stainless steel octagonal bezel, accurate brushed top and polished chamfers
- Crystal: Scratch-resistant sapphire with colorless anti-reflective coating
- Bracelet: Integrated stainless steel, brushed finish with AP folding clasp
- Water Resistance: 30m stated rating — professional pressure test recommended before swimming
This piece is suited for the collector who requires functional horological complexity without compromising on the iconic octagonal silhouette. It serves as a highly capable dress watch that carries substantial weight on the wrist.


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