Golfer Carin Koch spotted wearing a Rolex

Carin Koch, the Swedish professional golfer and multiple Solheim Cup competitor, was recently spotted wearing a Rolex Cosmograph Daytona ref. 116523 — the bi-metal variant that blends 904L stainless steel with 18k yellow gold in a combination Rolex collectors have long regarded as the sweet spot between sportiness and elegance. The sighting adds Koch to a roster of athletes who lean on the Daytona not just as a status piece but as a genuine tool watch with motorsport heritage.

Introduced in 2000, the ref. 116523 represented a pivotal evolution for the Daytona line. It was among the first references to carry Rolex's self-developed calibre 4130, replacing the outsourced Zenith El Primero-based movement that had powered earlier models. The calibre 4130 is a column-wheel chronograph with a vertical clutch, offering improved precision, a 72-hour power reserve, and dramatically simplified servicing — just 182 components versus the El Primero's 361. The movement oscillates at 28,800 vph and is certified as a Superlative Chronometer to within ±2 seconds per day. The 40mm case carries a tachymetric bezel in 18k yellow gold, with subdials at 3, 6, and 9 o'clock and water resistance to 100 metres.

From a collector's standpoint, the 116523 occupies an interesting position. It lacks the cult status of a full-gold ref. 116528 or the raw sports appeal of the all-steel ref. 116520, but its two-tone configuration is a classic Rolex aesthetic that has aged remarkably well. Production of this generation concluded with the launch of the ref. 116503 and ultimately the Oysterflex-equipped 116518LN-era updates, making surviving 116523 examples increasingly scarce on the secondary market.

Koch, who turned professional in 1992 and represented Sweden across multiple Solheim Cup campaigns, has built a career defined by precision and composure — qualities that align naturally with the Daytona's chronometric credentials. The choice of a bi-metal configuration rather than pure steel or full gold reads as considered rather than showy, consistent with an athlete's pragmatic sensibility.

On the grey market, the Rolex Daytona ref. 116523 trades comfortably above its original retail price, with demand driven by the reference's discontinuation and the enduring strength of Daytona collectibility across all configurations. Buyers seeking this specific two-tone variant should expect to pay a meaningful premium over any listed retail figure, with condition, box, and papers influencing final values significantly.