Series : LADY DATEJUST
Model Number : 178274-0089
Movement : Automatic
Power Reserve : Caliber Rolex 2235, 48Hours
Case Diameter : 31mm
Case Thickness : 11.4mm
Factory : Clean Factory / VSF(VS Factory)
Crystal : Resistant Sapphire Crystal
Dial Colour : Bround
Strap Colour : Silver
Strap Material : Stainless Steel
Clasp : Folding Clasp
What to Verify: Negative Evidence
For 178274-0089, negative evidence helps counter confirmation bias. If the decisive view or function test is missing, the accurate result is an unresolved question rather than a forced conclusion.
Research Focus: Crown-Case Interface
Crown-Case Interface on 178274-0089 combines several manufacturing decisions at once. Repeated spacing and fit at component junctions can be more informative than one decorative detail, especially when compared on both sides.
Coronet Geometry
On 178274-0089, coronet geometry is best read as part of the whole dial composition. A three-quarter interface view can show spacing and repeated geometry without perspective distortion; the Bround finish should be secondary to relationships that remain stable across lighting conditions.
Evidence Question — Calendar Setting
For 178274-0089, calendar setting combines visual and mechanical evidence. Inspect several displayed values and compare actual setting or changeover behavior where relevant; optical distortion around the date should not be confused with movement behavior.
What to Verify: Reference-Specific Function
On 178274-0089, reference-specific function should determine how much weight each observation receives. Repeatable structure and function generally outrank lighting-sensitive appearance, while provenance provides a separate supporting channel.


























Jeffrey Smith –
What interested me here was the balance between the case size and the dial design. The Bround is the detail I notice first, while the 18kt White Gold & Steel gives the overall design a cohesive look. I like the way the individual specifications come together.