APPF Edition — Hybrid Calfskin Strap
APPF’s rendition of the Code 11.59 Tourbillon Blue Openworked 26600NB captures the complex architectural geometry of the genuine piece. The multi-piece case construction, featuring an octagonal midcase housed within a round bezel and caseback, demonstrates precise CNC machining tolerances rarely seen in standard replica production.
Powered by the custom AP Calibre 2948 manual-wind tourbillon clone, this movement features a vertically aligned architecture with the mainspring barrel at 12 o’clock and a sweeping, fully functional tourbillon escapement at 6 o’clock. The power reserve operates at approximately 36 hours, ensuring reliable daily performance.
The 41mm two-tone case measures precisely 13.9mm in thickness and weighs a verified 80.1g, reflecting the lightweight nature of its openworked design. The dial features deep blue accents on the inner flange, protected by the signature double-curved sapphire crystal that creates unique optical depth without severe dial distortion.
- Movement: Custom AP 2948 Manual Wind Tourbillon Clone — Approximately 36 hours
- Case Material: Two-Tone Architectural Case, 41mm x 50mm, 80.1g
- Bezel: Ultra-thin round bezel with polished chamfers
- Crystal: Double-Curved Sapphire with internal AR coating
- Bracelet: Hybrid calfskin lined strap with folding clasp
- Water Resistance: 30m stated rating — professional pressure test recommended before swimming
This piece appeals to horologists evaluating the mechanical complexity of a functional tourbillon within a modern, avant-garde case profile. Its hybrid strap transitions seamlessly between formal and smart-casual environments.

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