Rolex Steel and Yellow Gold Datejust 31 Watch - Domed Diamond Bezel - Dark Mother-of-Pearl Diamond Dial - Jubilee Bracelet - 278343 dkmdjWithin the modern Datejust 31mm collection, reference 278343 stands as a masterful expression of Rolex's two tone craftsmanship, pairing Oystersteel with 18ct yellow gold in a case size that honors the collection's refined proportions. The dark mother of pearl dial creates an enigmatic canvas that shifts from deep charcoal to subtle iridescent tones depending on ambient light, while diamond hour markers provide precise luminous reference points across

Perpetual Movement with Date Display — Self-winding mechanical movement with instantaneous date change at midnight

honoring the collection's heritage while embracing modern sizing preferences that appeal to discerning collectors seeking understated refinement

52mm thick with sapphire crystal caseback displaying the movement's hand-finished bridges

representing the pinnacle of this reference

This 40mm white gold case

Within the Complications lineage

Golden Brown Opaline Dial — Exclusive finish that transitions from warm amber to deep bronze

The 12mm case showcases the brand's mastery in precious metal craftsmanship

Alligator Leather Strap — Hand-stitched alligator leather strap with platinum fold-over clasp ensuring secure and comfortable wrist presence

this unworn example delivers the kind of purposeful weight that reminds you of its $40

creating light play that complements the embossed dial texture

The reference 178343 emerged during Rolex's mid-2000s production era when the brand refined the Datejust's proportions for contemporary wear while maintaining the collection's foundational design language established in 1945