YS Factory Edition — Black Fluoroelastomer Strap
The YS Factory RM 052 marks a significant technical shift in replica tonneau architecture by addressing long-standing structural flaws found in previous iterations. Most notably, this edition discards the decorative plastic patches used by earlier factories, integrating a functional ruby bearing directly into the skull’s mouth to support the tourbillon pivot.
Powered by a custom manual-winding real tourbillon caliber from the Shanghai movement factory, the mechanism achieves an accurate asymmetrical rear visual perspective. The black balance wheel remains concealed behind the lower jaw, leaving only the escapement wheel visible beneath the cranium. Power reserve is rated at approximately 36 hours.
The 49.8mm x 44.3mm tonneau case utilizes a 316L stainless steel base coated in multi-layer nano electroplated 18K rose gold. YS Factory has applied a satin fine-sand finish to the skull, correcting the right eye gear depth and eliminating the artificial yellowing common in older batches.
- Movement: Custom Shanghai Manual Tourbillon — Approximately 36 hours
- Case Material: 316L Stainless Steel Base, 49.8mm × 44.3mm, 147g
- Bezel: 18K Rose Gold Plated, satin fine-sand finish
- Crystal: Double-sided Sapphire with colorless AR coating
- Bracelet: Thai-imported black fluoroelastomer, sandblasted folding clasp
- Water Resistance: 30m rated — professional pressure test recommended before swimming. Do not operate chronograph pushers or the crown while the watch is submerged.
Designed for the horological enthusiast who appreciates avant-garde skeletonization. This piece demands a larger wrist profile to properly accommodate its tonneau curvature and substantial weight.

Reviews
There are no reviews yet.