Pre-owned Rolex Daytona ref 116503 (2019). In 2000, Rolex introduced its first chronograph movement produced completely in-house via the calibre 4130. Similar to the previous movement, which was outsourced and modified by Rolex, the calibre 4130 beats at a rate of 28,800 bph and also utilizes the brand’s innovative Paramagnetic blue Parachrom hairspring and self-winding technology. A power reserve of 72 hours allows the wearer to set their watch down for a couple days without having to re-wind or re-set the date mechanism. The ref. 116503 is a handsome example of the series that presents the case and bracelet in a desirable two-tone Yellow Rolesor finish of 18 karat yellow gold and 904L-grade stainless steel. This preowned Rolex displays the time on a champagne dial set with diamond hour markers and gold central hands. Shop Rolex Daytona Collection