Series : DATEJUST
Model Number : 278384RBR-0040
Movement : Automatic
Power Reserve : Caliber Rolex2236, 55Hours
Case Diameter : 31mm
Case Thickness : 11mm
Factory : Clean Factory / VSF(VS Factory)
Mirror Material : Resistant Sapphire Crystal
Dial Colour : Blue
Strap Colour : Silver
Strap Material : Stainless Steel
Clasp : Folding Clasp
Gender : Ladies
Marker Spacing — Genuine Study
Marker Spacing evidence for 278384RBR-0040 uses marker spacing against a same-generation genuine Rolex. Within marker spacing, the Blue and 31mm become reference anchors; within marker spacing, the Stainless Steel remains a configuration cross-check. Only marker spacing observations from the matching 278384RBR-0040 generation receive direct comparison weight.
Bezel Registration — Community Qc
Bezel Registration for 278384RBR-0040 becomes a focused community-QC photography question. A bezel registration photograph should expose bezel registration without dramatic seller lighting; a bezel registration concern commonly raised in Reddit or forum QC discussions supplies a question, not proof. The technical answer to bezel registration still comes from the genuine 278384RBR-0040 reference.
Crystal Height — Construction Geometry
Crystal Height on 278384RBR-0040 is treated strictly as crystal height construction geometry. Repeated crystal height shapes around the 31mm case are separated from color and gloss; crystal height interfaces are recorded before cosmetic impressions. If crystal height conflicts with the Blue or Stainless Steel configuration, that crystal height conflict remains visible in the assessment.
End-Link Fit — Genuine Study
End-Link Fit evidence for 278384RBR-0040 uses end-link fit against a same-generation genuine Rolex. Within end-link fit, the Blue and 31mm become reference anchors; within end-link fit, the Stainless Steel remains a configuration cross-check. Only end-link fit observations from the matching 278384RBR-0040 generation receive direct comparison weight.
Dial Composition — Genuine Study
Dial Composition evidence for 278384RBR-0040 uses dial composition against a same-generation genuine Rolex. Within dial composition, the Blue and 31mm become reference anchors; within dial composition, the Stainless Steel remains a configuration cross-check. Only dial composition observations from the matching 278384RBR-0040 generation receive direct comparison weight.
Coronet Geometry — Community Qc
Coronet Geometry for 278384RBR-0040 becomes a focused community-QC photography question. A coronet geometry photograph should expose coronet geometry without dramatic seller lighting; a coronet geometry concern commonly raised in Reddit or forum QC discussions supplies a question, not proof. The technical answer to coronet geometry still comes from the genuine 278384RBR-0040 reference.


















Matthew Green –
I wasn’t trying to make a statement with it; I wanted something I could actually use regularly. The design is fairly restrained, with blue dial and white dial providing the main point of interest. I found the fit easy enough to adjust, which was important because I wanted to wear it regularly. Nothing dramatic, just a purchase that worked out well for me.