Series : DAYTONA
Model Number : 126503-0003
Movement : Automatic
Power Reserve : Caliber Rolex 4131, 72Hours
Case Diameter : 40mm
Case Thickness : 12mm
Factory : Clean Factory / VSF(VS Factory)
Mirror Material : Resistant Sapphire Crystal
Dial Colour : Black
Strap Colour : Silver & Gold
Strap Material : 18kt Gold & Steel
Clasp : Folding Clasp
Gender : Ladies
Marker Spacing — Community Qc
Marker Spacing for 126503-0003 becomes a focused community-QC photography question. A marker spacing photograph should expose marker spacing without dramatic seller lighting; a marker spacing concern commonly raised in Reddit or forum QC discussions supplies a question, not proof. The technical answer to marker spacing still comes from the genuine 126503-0003 reference.
Movement Architecture — Genuine Study
Movement Architecture evidence for 126503-0003 uses movement architecture against a same-generation genuine Rolex. Within movement architecture, the Black and 40mm become reference anchors; within movement architecture, the 18kt Gold & Steel remains a configuration cross-check. Only movement architecture observations from the matching 126503-0003 generation receive direct comparison weight.
Crystal Edge — Genuine Study
Crystal Edge evidence for 126503-0003 uses crystal edge against a same-generation genuine Rolex. Within crystal edge, the Black and 40mm become reference anchors; within crystal edge, the 18kt Gold & Steel remains a configuration cross-check. Only crystal edge observations from the matching 126503-0003 generation receive direct comparison weight.
Bezel Relief — Genuine Study
Bezel Relief evidence for 126503-0003 uses bezel relief against a same-generation genuine Rolex. Within bezel relief, the Black and 40mm become reference anchors; within bezel relief, the 18kt Gold & Steel remains a configuration cross-check. Only bezel relief observations from the matching 126503-0003 generation receive direct comparison weight.
Calendar Transition — Functional Check
Calendar Transition supplies a separate calendar transition functional test for 126503-0003. The listed Automatic is checked through calendar transition behavior or calendar transition architecture; the movement name never substitutes for calendar transition evidence. After calendar transition testing, the calendar transition result is compared with the external Black and 18kt Gold & Steel configuration of 126503-0003.
Marker Spacing — Functional Check
Marker Spacing supplies a separate marker spacing functional test for 126503-0003. The listed Automatic is checked through marker spacing behavior or marker spacing architecture; the movement name never substitutes for marker spacing evidence. After marker spacing testing, the marker spacing result is compared with the external Black and 18kt Gold & Steel configuration of 126503-0003.


























Scott Harris –
The first thing I noticed was how the different design elements work together. Once I saw it in normal lighting, black dial and 40mm case made more sense than it did on screen. I was mainly concerned about whether the actual item would match the listing, and it was reasonably close. It’s not something I’d overthink now that I’ve seen it in person.