Custom R 4131 movement – features an original‑style non‑indexed balance with weighted screws for stable and accurate timekeeping.
The bridges are genuine engraved factory parts (original, not aftermarket), with sharp, authentic markings.
The rotor is CNC‑engraved with fine, detailed textures.
Now you can open the case back on your Daytona without worry [smirk] – ideal for those who demand high authenticity and original component sourcing in their 4131 movement build.
