Series : LADY DATEJUST
Model Number : 178241BKRN_O
Movement : Automatic
Power Reserve : Caliber Rolex 2235, 48Hours
Case Diameter : 31mm
Case Thickness : 11.2mm
Factory : Clean Factory / VSF(VS Factory)
Crystal : Scratch-Resistant Sapphire Crystal
Dial Colour : Black
Strap Colour : Silver
Strap Material : 18kt Rose Gold & Steel
Clasp : Folding Clasp
Brush-Grain Direction Study
In this evidence hierarchy memo, keep brush-grain direction separate from provenance. Seller claims, documents and Clean Factory / VSF(VS Factory) belong to different evidence channels and should not rescue a weak physical observation.
Cyclops Optical Behavior
This evidence hierarchy memo makes cyclops optical behavior the main question for 178241BKRN_O. Compare the feature with a verified same-generation example and use the Black, 31mm and 18kt Rose Gold & Steel only where they materially affect the result.
Evidence Hierarchy Memo — Replica Photography Pitfalls
Treat replica photography pitfalls as a boundary condition in the 178241BKRN_O analysis. Calling something a replica or clone does not explain which component is inconsistent; the investigation should identify the physical or mechanical reason.
Testing Same-Reference Comparison
Photography is part of the evidence for same-reference comparison on 178241BKRN_O. A three-quarter interface view under neutral light is preferable; if the finding changes dramatically with angle, its diagnostic weight should be reduced.
Functional Cross-Check Study
Begin the 178241BKRN_O review with functional cross-check, not with overall visual similarity. A bezel/dial registration view should expose the relevant geometry while limiting perspective and reflection errors that can make a correct feature look wrong.


















Steven Wright –
The Scratch-Resistant Sapphire Crystal is a useful specification to see, especially for something intended for regular wear. The listing made this version stand out to me for a couple of reasons. The ordering process was straightforward from my side. It is a good match for the style I had in mind.