Lady-Datejust 26 Black Dial Smooth Bezel 18K Yellow Gold Steel Oyster 179163BKSO

The Rolex Lady-Datejust 26 Ref. 179163 in the BKSO configuration is a timeless and versatile timepiece from the previous 26 mm generation, featuring the classic two-tone combination of Yellow Rolesor (Oystersteel and 18K Yellow Gold). Distinct from the fluted bezel, this model features a smooth, polished 18K Yellow Gold Domed Bezel, which gives the watch a sleek and understated look. The dial features a classic Black finish, providing an exceptional, high-contrast backdrop against the warm gold and steel. The dial utilizes clean Applied Index Hour Markers (batons), typically rendered in 18K Yellow Gold, offering superb clarity and a refined, uncluttered aesthetic.

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	Domed 18K Yellow Gold (Smooth, polished finish)
	Crystal	$\text{Scratch}$–$\text{resistant}$ $\text{Sapphire}$ $\text{with}$ $\text{Cyclops}$ $\text{lens}$
	Reference	179163BKSO
Dial	Color	Black (Classic, high-contrast sunray finish)
	Markers	Applied Index Hour Markers (Batons in 18K Yellow Gold)
	Aesthetic	Sharp black dial with clean index markers and sleek domed bezel
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	Oyster Yellow Rolesor (three-piece links)
	Clasp	Folding Oysterclasp with Easylink extension link
Additional Info	Watch Style	Classic Two-Tone Daily Wear / High-Contrast Dial
	Certification	$\text{Superlative}$ $\text{Chronometer}$
	Key Features	Domed Bezel, Black Index 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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