Series : OYSTER PERPETUAL
Model Number : 115200BK_O
Movement : Automatic
Power Reserve : Caliber Rolex 3135, 48Hours
Case Diameter : 34mm
Case Thickness : 11.6mm
Factory : Clean Factory / VSF(VS Factory)
Crystal : Scratch-Resistant Sapphire Crystal
Dial Colour : Black
Strap Colour : Silver
Strap Material : Stainless Steel
Clasp : Folding Clasp
Testing Hand Reach
Make hand reach the subject of a product-specific evidence plan for 115200BK_O. First capture a neutral close-up; second, compare the alignment; third, compare only with the matching generation. This sequence prevents a familiar series-wide checklist from replacing reference-specific reasoning.
Brush Direction Study
A strong brush direction assessment for 115200BK_O uses more than one observation point. Inspect the transition at equivalent positions, then compare the pattern with a verified reference. One isolated QC flaw has limited diagnostic value.
Power Reserve on This Reference
Power Reserve is the first evidence channel for 115200BK_O. Verify its architecture against a same-generation genuine reference, using the Black only where the dial actually controls the comparison. A axial macro is preferable when the existing image hides depth or alignment.
Dial-Rehaut Spacing
Dial-Rehaut Spacing is the first evidence channel for 115200BK_O. Isolate its proportion against a same-generation genuine reference, using the Black only where the dial actually controls the comparison. A diffuse frontal frame is preferable when the existing image hides depth or alignment.
Caseback-Midcase Transition Study
Community QC discussions make caseback-midcase transition a practical question for 115200BK_O, but not an answer. Use those discussions to identify the disputed alignment, obtain a component junction view, and return to the genuine same-reference watch for the technical baseline.




























Kevin Hall –
First impression: pretty good. For me, the overall design is what makes this version stand out. The fit was comfortable without much adjustment. I’ll need more time before saying anything about durability, but the start has been good.