Lady-Datejust 26 Mother-of-Pearl Numerals Dial 18K Yellow Gold Steel Oyster 179173MRO

The Rolex Lady-Datejust 26 Ref. 179173 in the MRO configuration is a distinctive and highly luxurious timepiece from the previous 26 mm generation, celebrated for its unique combination of natural materials and classic design. This model is constructed using the iconic two-tone aesthetic, known as Yellow Rolesor (the harmonious fusion of Oystersteel and 18K Yellow Gold). The watch gains immediate recognition and a brilliant, sparkling effect from its iconic 18K Yellow Gold Fluted Bezel, a signature Rolex element renowned for its geometric texture and exceptional light reflection.

The absolute centerpiece of this timepiece is the exquisite Mother-of-Pearl (MOP) Dial . Sliced from the inner shell of an oyster, MOP is treasured for its natural iridescence, shimmering through a unique spectrum of colors that constantly shift with the light, guaranteeing that no two dials are identical. The markers chosen for this unique surface are traditionally styled, applied Roman Numerals (typically set in 18K Yellow Gold), which impart a classic, timeless, and readable character, providing a powerful contrast against the ethereal MOP background.

Key Features

Case	Material	Yellow Rolesor (Oystersteel and 18K Yellow Gold)
	Dimensions	26 mm (Previous generation 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	179173MRO
Dial	Color	Mother-of-Pearl (MOP) (Iridescent, unique natural shell surface)
	Markers	Applied Roman Numerals (in 18K Yellow Gold)
	Aesthetic	Highly luxurious, naturally unique, shimmering MOP dial with Roman numerals
Movement	Type	Perpetual, mechanical, self-winding
	Power Reserve	Approximately 50 $\text{hours}$
	Caliber	Calibre 2235 (Previous generation movement)
	Technology	Parachrom hairspring, Superlative Chronometer
Bracelet/Strap	Material	Oyster Yellow Rolesor (three-piece links)
	Clasp	Folding Oysterclasp with Easylink extension link
Additional Info	Watch Style	High-Luxury Two-Tone Dress Watch / Exotic Dial
	Certification	$\text{Superlative}$ $\text{Chronometer}$
	Key Features	Fluted Bezel, Mother-of-Pearl Roman Numerals Dial, Oyster 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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