Rolex Steel and Yellow Gold Datejust 31 Watch - 24 Diamond Bezel - Black Concentric Circle Arabic Dial - Jubilee Bracelet - 178343 bkcajFirst introduced as part of Rolex's mid 2000s expansion of the Lady Datejust collection, the reference 178343 marked a pivotal moment when the manufacture refined proportions for smaller wrists while maintaining the sophisticated presence of precious metals and diamonds. This particular example showcases the reference's signature 24mm yellow gold case paired with a striking black concentric circle dial, featuring Arabic numerals that create bold

29mm Case Diameter — Optimal sizing for feminine wrists while retaining substantial presence and visual impact

Unworn Condition — Complete with all factory finishes

Rolex's proprietary rose gold alloy that maintains its warm hue through the addition of platinum

The domed bezel's polished yellow gold finish creates a seamless visual flow from case to crown

This medium-sized configuration represents the collection's sweet spot

Fluted Bezel — 18kt yellow gold with Rolex's signature fluting that creates light play and serves as the collection's defining aesthetic element

where the 31mm yellow gold case strikes an ideal balance for those seeking presence without overwhelming wrist presence

while the Oyster bracelet maintains the collection's trademark durability

Unworn Condition — Factory-fresh example with all original finishing and protective stickers intact

Leather Strap with Fold-Over Clasp — Premium leather strap secured by a white gold fold-over clasp

Ivory Satin Finish Dial — The textured ivory surface provides exceptional legibility while creating subtle light play across the Roman numeral hour markers

and Rolex's proprietary Parachrom hairspring for enhanced precision and magnetic resistance