Lady-Datejust 26 Dark Mother-of-Pearl Numerals Dial 18K Yellow Gold Steel Jubilee 179173BKMRJ

The Rolex Lady-Datejust 26 Ref. 179173 in the BKMRJ configuration is a distinctive and classical timepiece from the previous 26 mm generation, combining unique natural beauty with the celebrated two-tone combination of Yellow Rolesor (Oystersteel and 18K Yellow Gold). The watch is framed by the signature 18K Yellow Gold Fluted Bezel, a defining Rolex feature that provides brilliant light reflection. The dial is the showpiece: a dramatic Dark Mother-of-Pearl (MOP) finish . Sourced from the shell’s interior, MOP features deep, shifting colors and dark iridescence, ensuring that no two dials are exactly alike. The dial utilizes traditional Applied Roman Numerals, typically rendered in 18K Yellow Gold, providing a classical and highly legible layout against the mysterious MOP background.

Key Features

Case	Material	Yellow Rolesor (Oystersteel and 18K Yellow Gold)
	Dimensions	$\text{26 mm}$ ($\text{Previous}$ $\text{generation}$ $\text{size}$)
	Water Resistance	$\text{100 metres}$ ($\text{330}$ $\text{feet}$)
	Bezel	Fluted 18K Yellow Gold (Rolex’s signature design)
	Crystal	$\text{Scratch}$–$\text{resistant}$ $\text{Sapphire}$ $\text{with}$ $\text{Cyclops}$ $\text{lens}$
	Reference	179173BKMRJ
Dial	Color	Dark Mother-of-Pearl (MOP) (Naturally iridescent and unique dark material)
	Markers	Applied Roman Numerals (in 18K Yellow Gold)
	Aesthetic	Mysterious, shimmering MOP dial with classic Roman numerals
Movement	Type	Perpetual, mechanical, self-winding
	Power Reserve	Approximately $\text{50}$ $\text{hours}$
	Caliber	$\text{Calibre}$ $\text{2235}$ ($\text{Previous}$ $\text{generation}$ $\text{movement}$)
	Technology	$\text{Parachrom}$ $\text{hairspring}$
Bracelet/Strap	Material	Jubilee Yellow Rolesor (five-piece links)
	Clasp	Concealed folding Crownclasp
Additional Info	Watch Style	Classic Two-Tone Dress Watch / Unique Natural Dial
	Certification	$\text{Superlative}$ $\text{Chronometer}$
	Key Features	Fluted Bezel, Dark MOP Roman Numeral Dial, Jubilee Bracelet, Yellow Rolesor
	Rolesor	$\text{Blend}$ $\text{of}$ $\text{Oystersteel}$ ($\text{strength}$) $\text{and}$ $\text{18ct}$ $\text{Yellow}$ $\text{Gold}$ ($\text{richness}$)

More watches