Series : DAYTONA
Model Number : 116509-0020
Movement : Automatic
Power Reserve : Caliber Rolex 4130, 72Hours
Case Diameter : 40mm
Case Thickness : 13mm
Factory : Clean Factory / VSF(VS Factory)
Crystal : Scratch-Resistant Sapphire Crystal
Dial Colour : Silver
Strap Colour : Silver
Strap Material : 18kt White Gold
Clasp : Folding Clasp
Evidence Channel: Metal Tone Response
Photography can distort metal tone response on 116509-0020. Build the comparison around a diffuse frontal frame with neutral light, and judge the surface response before color or gloss. If the result depends heavily on camera angle, lower its evidentiary weight.
Evidence Channel: Lug Curvature
Lug Curvature becomes valuable on 116509-0020 when it is kept independent from provenance. Verify the physical or functional proportion; documents, seller claims and factory attribution belong to different evidence categories and should not rescue a weak observation.
Lug Taper Study
Photography can distort lug taper on 116509-0020. Build the comparison around a diffuse frontal frame with neutral light, and judge the spacing before color or gloss. If the result depends heavily on camera angle, lower its evidentiary weight.
Bezel Engraving
For 116509-0020, a useful test of bezel engraving starts with evidence quality. Request a diffuse frontal frame, then record the relevant interface; if perspective changes the finding, keep the result provisional rather than turning it into an origin claim.
Chronograph Reset on This Reference
116509-0020 should not inherit a conclusion about chronograph reset from another watch in the same series. Evaluate the feature within this exact Silver, 40mm, and 18kt White Gold combination; reference-generation differences can otherwise masquerade as defects.




















Scott Brown –
For me, the overall design is what makes this version stand out. First impression: pretty good. I checked the measurements first and the fit worked out. Nothing flashy, which suits me. So far, so good.