Series : 1908
Model Number : 52506-0003
Movement : Automatic
Power Reserve : Caliber Rolex 7140, 66Hours
Case Diameter : 39mm
Case Thickness : 9.3mm
Factory : Clean Factory / VSF(VS Factory)
Mirror Material : Resistant Sapphire Crystal
Dial Colour : Blue
Strap Colour : Black
Strap Material : Alligator
Clasp : Folding Clasp
Gender : Mens
Caseback Edge Radius: Independent Evidence
QC communities frequently discuss caseback edge radius, making it a useful question for 52506-0003. Use that discussion to decide what to inspect, then return to a genuine same-reference baseline for the answer. The stated 39mm gives 52506-0003 a proportion baseline for caseback edge radius, but photo-derived dimensions remain approximate without scale.
Balance Location
Use balance location to narrow the 52506-0003 analysis rather than broaden it. Confirm the exact generation, examine the matching genuine detail, and keep unrelated series traits outside this evidence channel. On 52506-0003, structural movement evidence gives balance location more weight than matching text on a bridge or rotor.
Crystal Edge Profile as a Reference Question
52506-0003’s crystal edge profile is best judged three-dimensionally. Use front, side or oblique evidence as needed to understand mass and interface geometry, while keeping polishing history outside the initial comparison. On 52506-0003, use a view that keeps the upper-case stack visible when deciding whether crystal edge profile is real.
Examining Component-Interface Tolerance
Let component-interface tolerance challenge the movement claim on 52506-0003. If operation and architecture agree, the evidence becomes stronger; if they diverge, keep the conflict visible instead of rationalizing it away. Keep component-interface tolerance as a separate evidence channel for 52506-0003; it should not absorb unrelated provenance or documentation claims.
Movement Architecture: Independent Evidence
For 52506-0003, a useful movement architecture image is one that can be repeated under neutral conditions. If the finding disappears when angle or lighting changes, its evidentiary value should fall. On 52506-0003, structural movement evidence gives movement architecture more weight than matching text on a bridge or rotor.













Brian Smith –
At first I was focused on the specifications, but the styling ended up being the deciding factor. The overall finish is clean, and blue dial and black dial adds just enough visual interest. So far the fit is comfortable, and the piece doesn’t feel difficult to wear for longer periods. I’m glad I took the time to compare the options.