{"product_id":"rolex-cosmograph-daytona-40-mm-126503bso","title":"Rolex Cosmograph Daytona 40 mm 126503BSO Steel\/Yellow Gold Luminous","description":"\u003cp\u003eThe Rolex Cosmograph Daytona 126503BSO is a 40 mm two-tone sports chronograph crafted in Oystersteel and 18 ct yellow gold (Rolesor), featuring a luminous dial and a screw-down bezel — one of the most coveted references in the current Daytona lineup.\u003c\/p\u003e\n\u003cp\u003eReference 126503BSO stands out for its refined contrast between brushed steel and warm yellow gold, making it equally at home on the racetrack or at a formal dinner. Contact Bizak \u0026amp; Co. today to purchase this exceptional Rolex Daytona online or inquire about availability.\u003c\/p\u003e\n\u003cp\u003eCompare it across \u003ca href=\"\/collections\/rolex-cosmograph-daytona\"\u003eevery Cosmograph Daytona reference we carry\u003c\/a\u003e, or browse the full \u003ca href=\"\/collections\/rolex\"\u003eRolex collection\u003c\/a\u003e at Bizak \u0026amp; Co.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuy this Cosmograph Daytona, trade in your current watch, or sell us yours.\u003c\/strong\u003e Contact Bizak \u0026amp; Co. to make an offer or request a fair-market valuation.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What makes the Rolex Cosmograph Daytona 126503BSO special?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The 126503BSO is the two-tone Rolesor version of the current-generation 40 mm Daytona, pairing Oystersteel with 18 ct yellow gold for a versatile combination of sportiness and luxury. Its screw-down pushers, luminous dial, and tachymetric bezel make it as capable as it is desirable, and the reference consistently ranks among the most sought-after Rolex configurations on the secondary market.\"}},{\"@type\":\"Question\",\"name\":\"What movement powers the Rolex Daytona 126503BSO?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Rolex equips the Daytona 126503BSO with an in-house yellow gold movement, reflecting the brand's commitment to finishing even internal components in keeping with the watch's luxury specification. Rolex Daytona movements at this level are COSC-certified chronometers and then held to the stricter Rolex Superlative Chronometer standard, though we recommend confirming detailed caliber specifics directly with Rolex or a qualified watchmaker.\"}},{\"@type\":\"Question\",\"name\":\"What is the case size of the Rolex Cosmograph Daytona 126503BSO?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The Daytona 126503BSO features a 40 mm Oyster case — the classic diameter Rolex has maintained for the Daytona across modern generations. This size sits comfortably on a wide range of wrist sizes and strikes the ideal balance between presence and wearability.\"}},{\"@type\":\"Question\",\"name\":\"Is the Rolex Daytona 126503BSO suitable for everyday wear?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Absolutely. The Daytona's Oystersteel and yellow gold Rolesor construction is highly resistant to corrosion and daily knocks, and Rolex's screw-down crown and pushers provide meaningful protection during everyday activities. Whether worn to the office, on a weekend, or at a formal event, the two-tone 126503BSO transitions seamlessly across contexts.\"}},{\"@type\":\"Question\",\"name\":\"What is the dial like on the Rolex Cosmograph Daytona 126503BSO?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The 126503BSO features a luminous dial with luminescent index markers and hands that ensure excellent legibility in low-light conditions. The luminous treatment is a practical nod to the Daytona's tool-watch origins, ensuring that drivers — and collectors — can read the time and elapsed intervals at a glance.\"}},{\"@type\":\"Question\",\"name\":\"How can I buy the Rolex Cosmograph Daytona 126503BSO from Bizak \u0026 Co.?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"You can purchase or inquire about the Rolex Daytona 126503BSO directly through bizakandco.com, where our team of specialists is available to discuss condition, provenance, and pricing. Bizak \u0026 Co. is an independent luxury watch dealer — not an authorized Rolex dealer — and we encourage all buyers to reach out for the most current availability and to ask any questions before completing their purchase.\"}}]}\u003c\/script\u003e","brand":"Rolex","offers":[{"title":"Default Title","offer_id":48859228471531,"sku":"126503BSO","price":24179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/8688\/7147\/files\/126503BSO_92cd43ee-7f96-466e-bae7-f1a3269d73a0.jpg?v=1781358391","url":"https:\/\/bizakandco.com\/products\/rolex-cosmograph-daytona-40-mm-126503bso","provider":"Bizak \u0026 Co.","version":"1.0","type":"link"}