Series : DATEJUST
Model Number : 178238
Movement : Automatic
Case Diameter : 31mm
Case Thickness : 8mm
Factory : Clean Factory / VSF(VS Factory)
Mirror Material : Resistant Sapphire Crystal
Dial Colour : Gold
Strap Colour : Gold
Strap Material : 18kt Yellow Gold
Clasp : Folding Clasp
Bezel Architecture
The clearest route into this watch is the bezel as a complete component: scale spacing, marker registration, edge definition and its height relative to the crystal. Evaluate alignment to the dial before using color or apparent gloss as supporting evidence. A crystal-and-bezel close-up can expose relationships that promotional frontal shots often hide. The source names Clean Factory / VSF(VS Factory) as factory attribution; keep that as classification metadata only.
Edge Definition
For this specimen, begin with transitions between surface treatments instead of overall brightness. Map where brushing stops, polishing begins and edges change direction around lugs, bezel and bracelet. Normal wear must be separated from manufacturing traits before finish quality is used diagnostically. Clean Factory / VSF(VS Factory) is useful for version tracking, not for proving authenticity.
Optical Geometry
This reference is best approached through the physical relationship between the Resistant Sapphire Crystal, bezel and dial. Compare seating, edge profile and visible height; the material label itself does not establish reference accuracy. A a movement photograph where appropriate keeps the upper-case stack visible in one frame. Clean Factory / VSF(VS Factory) is useful for version tracking, not for proving authenticity.
What the Evidence Can Support
Reference-matched evidence carries more weight than broad assumptions borrowed from neighboring Rolex models. The evidence record should remain reference-specific to 178238 throughout.
















Eric Clark –
After comparing a few similar pieces, this was the one I preferred. The proportions and date display and automatic movement work particularly well together. Nothing dramatic, just a purchase that worked out well for me.