Rolex 178240 (Pre-owned - Good) — USD 7,735 on eBay

Rolex Datejust Reference 178240 The reference 178240 represents Rolex's Datejust Medium series, featuring a 31mm case size that positions it between the brand's smaller and larger Datejust offerings. This reference was produced from 2009 to 2020, marking an eleven-year production run within the Datejust lineup. The watch features a two-tone construction utilizing Rolex's Rolesor combination of white gold and steel. The case incorporates a smooth bezel and sapphire crystal, with water resistance rated to 100 meters. The timepiece is powered by the automatic caliber 3135 movement, offering a 48-hour power reserve, and is fitted with an Oyster bracelet. This reference appeals to collectors seeking a mid-sized Datejust with precious metal integration in a contemporary format. The 31mm case size and Rolesor construction provide an alternative to purely steel variants, while the smooth bezel offers a clean aesthetic compared to fluted alternatives within the Datejust range.