Off-catalogue Rolex Cosmograph Daytona creations—led by the Everose Rainbow Ref. 116595RBOW, Yellow Gold Rainbow Ref. 116598RBOW, and Eye of the Tiger Ref. 116588TBR—combine solid 18K gold (Au750) cases with 36 trapeze-cut baguette sapphires or diamonds channel-set to 0.01 mm optical color and alignment tolerances.
Key Quantitative Laboratory Takeaways
- The Daytona Rainbow Ref. 116595RBOW bezel contains 36 baguette-cut sapphires (~3.88 carats) graduated seamlessly across the CIE chromaticity spectrum, plus 56 brilliant-cut VVS diamonds on the lugs and crown guards.
- On a full solid 18K Everose Oyster bracelet with gold crystal sub-dials, the Ref. 116595RBOW registers 218.6 grams on a calibrated Mettler-Toledo laboratory balance.
- The Eye of the Tiger Ref. 116588TBR pairs a black-and-golden lacquer wave dial with 243 brilliant-cut diamonds and a 36-stone trapezoid diamond bezel in solid 18K yellow gold.
- Every off-catalogue lot allocated through 18K VIP Geneva includes a zero-premium private treaty escrow protocol and pre-shipment 4K gemological + Fischer XRF Au750 video dossier.
| Reference Number | Precious Metal Alloy | Bezel Gem-Setting Spec | Lug & Dial Setting | Verified Mass (g) | Calibre |
|---|---|---|---|---|---|
| Ref. 116595RBOW | 18K Everose Gold (Au750) | 36 Graduated Rainbow Baguette Sapphires | 56 VVS Lug Diamonds + 11 Rainbow Baguette Markers | 218.6g (Bracelet) | Cal. 4130 |
| Ref. 116598RBOW | 18K Yellow Gold (Au750) | 36 Graduated Rainbow Baguette Sapphires | 56 VVS Lug Diamonds + 8 Round Hour Diamonds | 217.2g (Bracelet) | Cal. 4130 |
| Ref. 116599RBOW | 18K White Gold (Au750) | 36 Graduated Rainbow Baguette Sapphires | 56 VVS Lug Diamonds + Pink Gold Crystal Subdials | 220.4g (Bracelet) | Cal. 4130 |
| Ref. 116588TBR | 18K Yellow Gold (Au750) | 36 Trapezoid Baguette VVS Diamonds | Pave Tiger-Stripe Lacquer Dial + Champagne Counters | 161.4g (Oysterflex) | Cal. 4130 |
| Ref. 126538TBR | 18K Yellow Gold (Au750) | 36 Trapezoid Baguette VVS Diamonds | Black & Golden Dial + Baguette Diamond Markers | 162.8g (Oysterflex) | Cal. 4131 |
| Ref. 116576TBR | 950 Platinum (Pt950) | 36 Trapezoid Baguette VVS Diamonds | Full Pave Diamond Dial + Ice-Blue Chrono Counters | 280.5g (Pt950 Link) | Cal. 4130 |
What Makes an Off-Catalogue Rolex Daytona So Difficult to Engineer?
Unlike standard catalogue watches listed in public retail brochures, off-catalogue (hors-catalogue) high-jewelry chronographs such as the Rolex Daytona Rainbow Ref. 116595RBOW and the Eye of the Tiger Ref. 116588TBR are reserved for private vault allocations because of the extreme gemological and metallurgical tolerances required. On the Rainbow Daytona, 36 trapezoidal baguette-cut sapphires must be cut to identical pavilion angles and table heights so that when pressed into the CNC-milled solid 18K gold bezel channel, the stones form a continuous mirror surface with zero visible metal dividers and zero step transitions between adjacent hues.
In our Geneva Private Treaty Vault, every off-catalogue Daytona lot is crafted from solid 18K yellow, Everose, or white gold (Au750) or 950 platinum (Pt950), housing the column-wheel Calibre 4130 or 4131 movement regulated to chronometer tolerances.
How Are Gold Crystal Sub-Dials and Tiger-Stripe Pave Dials Constructed?
On the Ref. 116595RBOW, the three chronograph sub-registers at 3, 6, and 9 o'clock are crafted from Pink Gold Crystals—created by controlled crystallization of 18-karat rose gold bullion so that every sub-dial exhibits a one-of-a-kind geometric shimmer. Accompanying these counters are 11 baguette-cut sapphires functioning as luminous hour markers, each color-matched to the exact radial stone directly opposite it on the outer bezel.
On the Eye of the Tiger Ref. 116588TBR and its Calibre 4131 successor Ref. 126538TBR, solid 18K yellow gold dial ribs swirl between rivers of hand-set VVS brilliant diamonds and glossy black lacquer, anchored by 36 trapezoid baguette diamonds along the bezel and paired with a black Oysterflex elastomer strap and solid 18K yellow gold folding clasp weighing 161.4g to 162.8g.
| Bezel Clock Sector | Stone Positions (#1–#36) | Chromatic Hue Transition | Refractive Index | Mohs Hardness | Channel Tolerance |
|---|---|---|---|---|---|
| 12:00 to 02:00 Sector | Stones #01 to #06 | Deep Ruby Red to Mandarin Orange | 1.762 – 1.770 | 9.0 Corundum | +/- 0.005 mm |
| 02:00 to 04:00 Sector | Stones #07 to #12 | Mandarin Orange to Canary Yellow | 1.762 – 1.770 | 9.0 Corundum | +/- 0.005 mm |
| 04:00 to 06:00 Sector | Stones #13 to #18 | Chartreuse to Tsavorite Emerald Green | 1.762 – 1.770 | 9.0 Corundum | +/- 0.005 mm |
| 06:00 to 08:00 Sector | Stones #19 to #24 | Lagoon Teal to Ceylon Cornflower Blue | 1.762 – 1.770 | 9.0 Corundum | +/- 0.005 mm |
| 08:00 to 10:00 Sector | Stones #25 to #30 | Royal Indigo to Amethyst Violet | 1.762 – 1.770 | 9.0 Corundum | +/- 0.005 mm |
| 10:00 to 12:00 Sector | Stones #31 to #36 | Fuchsia Pink Back to Crimson Ruby | 1.762 – 1.770 | 9.0 Corundum | +/- 0.005 mm |
Why Private Treaty Acquisition Eliminates the 26% Auction House Buyer's Premium
When off-catalogue high-jewelry timepieces surface at public Geneva or Hong Kong auctions, the winning bidder pays a 25% to 27% auction house buyer's premium on top of the hammer price, plus import duties and weeks of settlement delay. Acquiring an off-catalogue lot directly through 18K VIP Geneva Private Treaty eliminates all auction house commissions while providing superior technical transparency: a bespoke 4K Vault Dossier recording your exact watch on a Mettler-Toledo analytical scale, a Fischer XRF Au750/Pt950 purity scan, and a 6-position Witschi Chronoscope readout prior to insured armored dispatch.
Explore Verified Rolex Solid 18K Gold References in Our Register
Every timepiece referenced in this monograph is available for immediate allocation with pre-shipment 4K Mettler-Toledo gram weighing, Fischer XRF Au750 spectroscopy, and 6-position Witschi Chronoscope certification. Navigate directly to the 18K VIP Homepage Master Register, the Rolex Solid 18K Gold Collection Hub, or the Complete 774-Watch Catalogue:
Former Senior Horological Specialist (Geneva & Hong Kong Auctions), FGA Certified Gemologist.
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