Matériel du boîtier: Acier or ; Mouvement: Remontage automatique; Conditions: Jamais porté Année: 2006; Etat du lot: Sans certificat d'authenticité; Modèle: Daytona Prix devis Gmtbroker Référence: Cosmograph Manufacturer: Rolex Model: Daytona 116523 Serial/Year: Z 2006 - 2007 Grade: (What's This?) II Gender: Men's Movement / Features: Automatic 4130 movement, chronograph, scratch-resistant sapphire crystal, 44 jewels, waterproof screw-down crown Case: Stainless steel w/ 18k yellow gold engraved tachymeter (40mm), inner reflector ring engraved with serial number Dial: White w/ yellow gold luminescent hour markers and gold sub-dials Bracelet: Stainless steel and 18k yellow gold Oyster w/ Oysterlock clasp Box & Papers: Original Rolex box & papers Comments: This Rolex Daytona comes w/ Bob's 3-day satisfaction guarantee and one year warranty Rolex Daytona 116523wso Rolex's chronograph was originally developed with space travel in mind, hence the name "Cosmograph" that also appears on the dial.  When the brand lost the bid to become the official utility watch for NASA's astronauts, they turned their sights to another profession that could benefit from their highly accurate chronograph: professional racing.  Shortly after this shift, Rolex became the official sponsor of the Daytona Speedway and the name "Daytona" started to appear on the dial as well.  Fast forward several decades to the 6-digit series of Daytona watches, which now boast a movement made entirely in-house for optimal accuracy and shock resistance.  The Yellow Rolesor ref. 116523 is a great option to consider