The Rolex Datejust 36 (Reference 126203) is a luxury timepiece that seamlessly blends classic design with rare, high-end materials. This specific configuration features a 36mm Yellow Rolesor case (a combination of Oystersteel and 18k yellow gold), a domed bezel, and a highly distinct Mother of Pearl dial accented by Roman numeral hour markers.

• Case & Bezel: 36mm case diameter made from Oystersteel and 18k yellow gold (Yellow Rolesor). It features a sleek, polished domed bezel (unlike the fluted 126233 alternative). 

• The Dial: Authentic, organic Mother of Pearl (MOP). Because Rolex extracts mother-of-pearl naturally without artificial coloring, every dial is completely unique with individual iridescence and color structures. The Roman numeral hour markers are crafted in 18k yellow gold to prevent tarnishing. 

• Movement: Powered by the modern, in-house Calibre 3235 mechanical automatic movement. It delivers an impressive 70-hour power reserve and features a Paramagnetic blue Parachrom hairspring for anti-magnetism.

• Bracelet Options: Available on either a sporty 3-piece link Oyster bracelet or a dressier 5-piece link Jubilee bracelet, both utilizing a folding Oysterclasp with a 5mm Easylink comfort extension. 

• Durability: Features a scratch-resistant sapphire crystal with a Cyclops lens over the date, a Twinlock double waterproofness crown, and a 100-meter (330 feet) water resistance rating.