Sonic Factory Edition — 904L Oystersteel
The Sonic Factory edition of the Artisans de Genève Daytona represents a significant technical leap in the replica market. By abandoning the thicker, less reliable 7750 base used in previous iterations, Sonic has successfully stripped and skeletonized the industry-standard Dandong 4130. This achieves the correct genuine case profile and authentic pusher feel demanded by collectors evaluating mechanical alternatives on strict technical merit.
Powered by the True Dandong 4130 Skeleton caliber, this movement is not merely fitted with a decorative top plate. The mainplate and bridges have been physically milled, beveled, and plated to mimic haute horlogerie finishing. It features a fully functional chronograph with vertical clutch engagement, a column wheel, and a verified 48-hour power reserve, maintaining high stability even with the structural material removed.
The chassis is constructed from 904L Oystersteel, maintaining the exacting 40mm dimensions of the genuine reference. With the traditional dial removed, the movement itself serves as the face, protected by a dual sapphire crystal setup. While some bespoke AdG commissions feature dark green dial accents, this specific execution focuses on the raw, sandblasted metallic architecture of the caliber.
- Movement: True Dandong 4130 Skeleton — 48-hour power reserve
- Case Material: 904L Oystersteel, 40mm diameter, ~135g
- Bezel: 904L Steel or Forged Carbon (variant dependent)
- Crystal: Dual Sapphire (Front & Exhibition Back) with anti-reflective treatment
- Bracelet: 904L Oystersteel, brushed/polished finish, Oysterlock clasp
- Water Resistance: Stated 30m — professional pressure test recommended before swimming
This piece is tailored for the advanced enthusiast who appreciates custom horological modifications. It serves as a striking conversation piece that handles occasional wear, rather than a subtle daily driver.

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