Series : LADY DATEJUST
Model Number : 178243BK_J
Movement : Automatic
Power Reserve : Caliber Rolex 2235, 48Hours
Case Diameter : 31mm
Crystal : Scratch-Resistant Sapphire Crystal
Dial Colour : Black
Strap Colour : Gold
Clasp : Folding Clasp
Visual Proportion Study — Date-Wheel Centering
Use date-wheel centering as an independent cross-check on 178243BK_J. Agreement with unrelated dial, case and mechanical evidence strengthens configuration consistency; disagreement should remain visible until a targeted follow-up resolves it.
Dual-Time Display Logic Study
Begin the 178243BK_J review with dual-time display logic, not with overall visual similarity. A end-link close-up should expose the relevant geometry while limiting perspective and reflection errors that can make a correct feature look wrong.
Visual Proportion Study — Rehaut Relationship
Photography is part of the evidence for rehaut relationship on 178243BK_J. A square-on macro under neutral light is preferable; if the finding changes dramatically with angle, its diagnostic weight should be reduced.
Lug Taper Study
For 178243BK_J, lug taper works best as pattern evidence. Examine equivalent positions or repeated interfaces before assigning weight to one irregular point; isolated QC variation is less informative than systematic construction.
Visual Proportion Study — Reference-Era Consistency
For 178243BK_J, reference-era consistency works best as pattern evidence. Examine equivalent positions or repeated interfaces before assigning weight to one irregular point; isolated QC variation is less informative than systematic construction.


















Justin Gorcio –
The Black gives the model most of its personality, while the relatively restrained case keeps it from feeling too busy. I chose this one mainly because the specifications fit what I was looking for. I’ve only had a short time to evaluate it, so I’m keeping my comments focused on the listed design and initial impression. Overall, the configuration makes sense for what I wanted.