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Rolex - 228398TBR-0038 Day-Date 40 Yellow Gold - Baguette / Onyx

Ref. 228398TBR-0038

Rolex Rolex - 228398TBR-0038 Day-Date 40 Yellow Gold - Baguette / Onyx
Rolex Rolex - 228398TBR-0038 Day-Date 40 Yellow Gold - Baguette / Onyx
Rolex Rolex - 228398TBR-0038 Day-Date 40 Yellow Gold - Baguette / Onyx

Case

MaterialYellow Gold
Diameter40 mm
CrystalSapphire
WR100 m

Dial

ColorBlack
FinishGloss
IndexesGem-Set Indexes Hands: Stick

Movement

Caliber3255
Typeautomatic
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The 228398TBR family

228398TBR-0038 is one of 13 variants sharing the 228398TBR base reference — same watch underneath, different dial, bezel, or bracelet execution. Browse the others:

+ 4 more variants in this family.

Inside: Caliber 3255

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Calibre 3255’s criteria for precision in everyday wear are twice as exacting as those for an officially certified chronometer. It incorporates the new Chronergy escapement patented by Rolex, which combines high energy efficiency with great dependability. Made of nickel‑phosphorus, it is also insensitive to magnetic interference. The oscillator, the true heart of the watch, has an optimized blue Parachrom hairspring, which is also up to 10 times more precise than a traditional hairspring in case of shocks. Thanks to a new barrel architecture and the escapement’s superior efficiency, the power reserve of calibre 3255 extends to three days. This means the watch will easily continue to run from Friday evening into Monday afternoon even if not worn or wound.

352 other watches in the library run the Rolex 3255.

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