| Bezel | Set with diamonds |
| Bracelet | Oysterflex |
| Bracelet Material | Flexible metal blades overmoulded with high-performance elastomer |
| Calibre | 4131, manufacture Rolex |
| Certification | Superlative Chronometer (COSC + Rolex certification after casing) |
| Clasp | Folding Oysterlock safety clasp with Rolex Glidelock extension system |
| CollectionName | Cosmograph Daytona |
| Crystal | Scratch-resistant sapphire |
| Dial | Steel, bright black counter rings set with diamonds |
| Diameter | 40 mm |
| Gem setting | 8 baguette-cut diamond-set hour markers, 3 diamond-set hour markers at 3, 6 and 9 o'clock. |
| Material | 18 ct white gold with lugs set with diamonds |
| Model Case | Oyster, 40 mm, white gold and diamonds |
| Movement | Perpetual, mechanical chronograph, self-winding |
| Power Reserve | Approximately 72 hours |
| Reference / Code | 126539TBR |
| Water Resistance | Waterproof to 100 metres / 330 feet |
| Winding Crown | Screw-down, Triplock triple waterproofness system |
The Oysterflex Bracelet
The 18 ct gold versions of the Cosmograph Daytona with a Cerachrom bezel are available with an Oysterflex bracelet. Developed by Rolex and patented, it singularly combines the robustness of a metal bracelet with the comfort of an elastomer bracelet. It is made up of two flexible curved metal blades – one in each bracelet section – overmoulded with high-performance black elastomer. For optimum comfort, the Oysterflex bracelet is equipped with cushions on its inner sides and an Oysterlock safety clasp to prevent accidental opening. Its length may be adjusted via the ingenious Rolex Glidelock extension system.
18 ct white gold
By operating its own exclusive foundry, Rolex has the unrivalled ability to cast the highest quality 18 ct gold alloys. According to the proportion of silver, copper, platinum or palladium added, different types of 18 ct gold are obtained: yellow, pink or white. They are made with only the purest metals and meticulously inspected in an in-house laboratory with state-of-the-art equipment, before the gold is formed and shaped with the same painstaking attention to quality. Rolex's commitment to excellence begins at the source.
