Series : DATEJUST
Model Number : 278384RBR-0037
Movement : Automatic
Power Reserve : Caliber Rolex 2236,55Hours
Case Diameter : 31mm
Case Thickness : 11mm
Factory : Clean Factory / VSF(VS Factory)
Crystal : Scratch-Resistant Sapphire Crystal
Dial Colour : Blue
Strap Colour : Silver
Strap Material : Stainless Steel
Clasp : Folding Clasp
Gender : Unisex
Provenance Boundary Study
Condition complicates provenance boundary on 278384RBR-0037. Polishing, wear or service replacement can change surfaces and edges, so manufacturing evidence should be separated from later intervention before origin is discussed.
Month Indication Logic Study
In this visual proportion study, keep month indication logic 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.
Testing Annual-Calendar Setting Sequence
278384RBR-0037 should not inherit a conclusion about annual-calendar setting sequence from another watch in the DATEJUST family. Resolve generation and configuration first; visually related references can still differ in details that matter to authentication research.
Crystal Height Study
This visual proportion study makes crystal height the main question for 278384RBR-0037. Compare the feature with a verified same-generation example and use the Blue, 31mm and Stainless Steel only where they materially affect the result.
Visual Proportion Study — Brush-Grain Direction
Community QC discussions can make brush-grain direction worth checking on 278384RBR-0037, but their value is diagnostic rather than authoritative. Use recurring concerns to improve the photo or test request, then return to the genuine reference.


















Ryon Toylar –
I keep noticing the overall design, which is a good sign. I tend to notice the little things, and that’s what sold me here. Ordering was straightforward. I think it looks better off the screen. I’m happy with it.