Lady-Datejust 26 Black Mother-of-Pearl Diamond Dial 18K Yellow Gold Steel Jubilee 179173BMJDJ

The Rolex Lady-Datejust 26 Ref. 179173 in the BMDJ configuration is a highly luxurious and unique timepiece from the previous 26 mm generation, showcasing the classic 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 distinctive Black Mother-of-Pearl (MOP) finish . This rare, naturally sourced material offers deep, shifting colors and dark iridescence, ensuring that no two dials are exactly alike. The dial’s opulence is completed by sparkling Diamond Hour Markers, set in 18K Yellow Gold, offering maximum brilliance 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	179173BMJDJ
Dial	Color	Black Mother-of-Pearl (MOP) (Dark, iridescent natural material)
	Markers	Diamond Hour Markers (in 18K Yellow Gold)
	Aesthetic	Mysterious, shimmering MOP dial with dazzling diamond markers
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	High-Luxury Two-Tone Dress Watch / Unique Natural Dial
	Certification	$\text{Superlative}$ $\text{Chronometer}$
	Key Features	Fluted Bezel, Black MOP Diamond Dial, Jubilee Bracelet, Yellow Rolesor
	Rolesor	$\text{Blend}$ $\text{of}$ $\text{Oystersteel}$ ($\text{strength}$) $\text{and}$ $\text{18ct}$ $\text{Yellow}$ $\text{Gold}$ ($\text{richness}$)

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