Recorded in our Monte-Carlo solid 18K gold Rolex register, the Rolex Submariner Date Graduated Royal Blue Sunburst Dial 18K White Gold Reference 126619LB unites authentic Geneva proportions (40.8 mm x 12.3 mm) with a certified 18K White Gold Au750 mass of 227.4g. Every detail of the Graduated Royal Blue Sunburst Dial with Solid 18K Gold Applied Hour Markers & Hands, Unidirectional Royal Blue Cerachrom Ceramic Bezel with 18K White Gold Graduations & Sapphire Crystal, and hallmarked clasp is verified under our Fischer XRF Au750 and Mettler-Toledo laboratory protocol.

5 Core Horological & Metallurgical Specifications:

• Registered Entity & Ref: Rolex Submariner Date Graduated Royal Blue Sunburst Dial 18K White Gold — Official Reference 126619LB (SKU: MC-AU750-126619LB-W761).
• Precious Metal Alloy: 18K White Gold Au750 with deep mechanical hallmarking and 5-axis Swiss CNC case finishing.
• Verified Reference Mass: 227.4g confirmed on our Monte-Carlo showroom Mettler-Toledo analytical balance.
• Mechanical Calibre: Rolex Manufacture Cal. 3235 - 70h Power Reserve operating at 28,800 vph (4 Hz) with 72-hour power reserve (+0.5 s/d, 301 deg).
• Sapphire Crystal & QC: Scratch-resistant sapphire crystal with double anti-reflective coating and 300m / 1,000 ft - Triplock Screw-Down water resistance.

Within the same Rolex horological silo, collectors also compare the Rolex Day-Date 40 Graduated Slate-Grey Ombre Sunray Dial 18K Everose Gold Ref. 228235 (210.7g) and the Rolex Cosmograph Daytona 18K Everose Gold Hand-Finished Buff Dial Deep Crystal Optics Ref. 116505 (216.1g).