5-Axis CNC & Horological Architecture
The Custom Rolex Cosmograph Daytona Rainbow 36 Graduated Sapphires & Pave Dial 18K Yellow Gold Reference 126598RBOW is a 5-axis Swiss CNC commission machined in 18K Yellow Gold Au750 (40.0 mm x 11.9 mm) weighing 216.5g on our Mettler-Toledo analytical balance, driven by Rolex Manufacture Cal. 4131 - 72h Power Reserve regulated to +0.5 s/d, 301 deg at 28,800 vph with a 72-hour power reserve beneath a double anti-reflective sapphire crystal.
| 01 / CNC Blueprint Entity & Reference | Rolex — Oyster Perpetual Cosmograph Daytona | Ref. 126598RBOW | SKU: AT-AU750-126598RBOW-W4 |
|---|---|
| 02 / 5-Axis CNC Metallurgy & Gold Purity | 18K Yellow Gold Au750 — Au750 — 75.0% Pure 18K Gold Bullion (XRF Verified) • Hallmarked Solid Precious Metal |
| 03 / Analytical Bench Weight (1:1 Reference Mass) | 216.5g — 1:1 Authentic Reference Mass Verified on Mettler-Toledo Analytical Scale |
| 04 / Custom Bezel, Gem-Setting & Case Geometry | Off-Catalog 18K Yellow Gold Au750 Bezel Set with 36 Graduated Rainbow Baguette-Cut Sapphires and 56 Brilliant-Cut VVS Diamonds on Lugs and Crown Guards • 216.5g 18K Yellow Gold • 40.0 mm x 11.9 mm |
| 05 / Regulated Super Clone Movement Calibre | Rolex Manufacture Cal. 4131 - 72h Power Reserve — Swiss Super Clone Mechanical Calibre Regulated to +0.5 s/d, 301 deg |
| 06 / Barrel Power Reserve & Balance Frequency | 72-Hour Power Reserve • 28,800 vph (4 Hz) Free-Sprung Balance Wheel |
| 07 / Optical Sapphire Crystal (Double AR) & Sealing | Scratch-Resistant Sapphire Crystal with Double Anti-Reflective Coating • 100m / 330 ft - Triplock Screw-Down |
| 08 / Bespoke Dial & Integrated Bracelet Spec | 40.0 mm x 11.9 mm • Full Diamond Pave & Black Lacquer Dial with Rainbow Sapphire Hour Markers & 18K Yellow Gold Hands • Integrated Solid 18K Yellow Gold Oyster Bracelet with Oysterlock Folding Safety Clasp |
Engineered inside our Geneva 5-axis CNC Rolex custom atelier, the Custom Rolex Cosmograph Daytona Rainbow 36 Graduated Sapphires & Pave Dial 18K Yellow Gold Reference 126598RBOW is machined from solid 18K Yellow Gold Au750 billets to micron-level tolerances (40.0 mm x 11.9 mm). Every bevel, lug chamfer, and Full Diamond Pave & Black Lacquer Dial with Rainbow Sapphire Hour Markers & 18K Yellow Gold Hands is hand-finished on our watchmaker bench, yielding a certified reference weight of 216.5g verified under our Fischer XRF and Mettler-Toledo QC protocol.
How Are the 36 Graduated Rainbow Baguette Sapphires Set on Rolex Ref. 126598RBOW?
The Rolex Cosmograph Daytona Reference 126598RBOW "Rainbow" is an off-catalog haute joaillerie chronograph crafted in 18K Yellow Gold Au750 and set with 36 graduated spectrum baguette-cut sapphires on the bezel plus 56 brilliant-cut diamonds on the lugs and crown guards, because chromatically matched sapphire crystals require micron-level channel setting to maintain 216.5g reference mass.
5 Core CNC & Chronometric Specifications:
- Blueprint Reference: Custom Rolex Cosmograph Daytona Rainbow 36 Graduated Sapphires & Pave Dial 18K Yellow Gold — Official Ref. 126598RBOW (SKU: AT-AU750-126598RBOW-W4).
- 5-Axis CNC Metallurgy: 18K Yellow Gold Au750 case (40.0 mm x 11.9 mm) and Off-Catalog 18K Yellow Gold Au750 Bezel Set with 36 Graduated Rainbow Baguette-Cut Sapphires and 56 Brilliant-Cut VVS Diamonds on Lugs and Crown Guards with hand-polished chamfers.
- Verified Bench Mass: 216.5g confirmed on a Mettler-Toledo analytical gram scale prior to dispatch.
- Super Clone Calibre: Rolex Manufacture Cal. 4131 - 72h Power Reserve operating at 28,800 vph (4 Hz) with 72-hour power reserve and +0.5 s/d, 301 deg accuracy.
- Sapphire Optics & Sizing: Double anti-reflective sapphire crystal, 100m / 330 ft - Triplock Screw-Down sealing, and 19 wrist sizing options (14.0–22.0 cm).
Within the Rolex Cosmograph Daytona horological sub-silo, collectors also compare the Rolex Cosmograph Daytona Gibeon Meteorite Dial 18K Everose Gold Ref. 126515 (160.9g) and the Rolex Cosmograph Daytona 18K Everose Gold Hand-Finished Buff Dial Deep Crystal Optics Ref. 116505 (216.1g).
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- Metallurgical & 4K QC Verification: Fischer XRF Au750 Protocol • 3-Year Mechanical Warranty • Insured Armored Delivery
How is the 18K Yellow Gold case of this Rolex 126598RBOW machined?
Our Geneva CNC specialists mill the monobloc middle case, bezel, and bracelet geometry on 5-axis Swiss machining centers in 18K Yellow Gold Au750 to achieve the authentic 216.5g reference mass.
Can the bracelet or strap be pre-sized to my exact wrist circumference?
Yes. Choose from 19 precision wrist circumference options (14.0 cm to 22.0 cm, or full unsized factory length). All removed solid links are sealed inside your presentation box.
How is the Rolex Manufacture Cal. 4131 - 72h Power Reserve tested on the atelier workbench?
We record a personalized 4K bench video showing the Rolex Manufacture Cal. 4131 - 72h Power Reserve (28,800 vph, 72-hour reserve) running at +0.5 s/d, 301 deg on our Witschi Chronoscope alongside Fischer XRF and Mettler-Toledo gram scale verification.
How many baguette-cut sapphires and diamonds are set on Rolex Rainbow Ref. 126598RBOW?
Reference 126598RBOW features 36 chromatically graduated rainbow baguette-cut sapphires flush-set into the 18K Yellow Gold Au750 bezel alongside 56 brilliant-cut VVS diamonds across the case lugs and crown guards, maintaining a verified total mass of 216.5g.
Custom Rolex Cosmograph Daytona Rainbow 36 Graduated Sapphires & Pave Dial 18K Yellow Gold Ref. 126598RBOW
5-Axis Swiss CNC 18K Yellow Gold Au750 • 216.5g Verified Mass • Regulated Rolex Manufacture Cal. 4131 - 72h Power Reserve