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=== Caliber 3285 ===
=== Caliber 3285 ===


The movement under every 6-digit reference is caliber 3285. Rolex launched the 3285 on the 2018 GMT-Master II lineup, the [[Reference:126710BLRO|126710BLRO]] Pepsi and the Rootbeer pair, and has carried it unchanged across every 6-digit reference that followed. The Chronergy escapement replaced the standard Swiss lever geometry inside the 31-series architecture. Power reserve moved from approximately 48 hours on caliber 3186 to 70 hours. Blue Parachrom hairspring and Paraflex shock protection carry over. The 3285 sits inside Rolex’s Superlative Chronometer certification, with rate accuracy tightened to -2/+2 seconds per day from the older COSC -4/+6 envelope.
Every 6-digit reference uses caliber 3285. The important upgrades over 3186 are the Chronergy escapement, 70-hour reserve, and the tighter Superlative Chronometer standard. The movement itself does not branch inside this family.


SJX’s launch coverage treated the Chronergy escapement as the headline technical change. Monochrome and Robb Report both anchor the 70-hour reserve as the consumer-facing improvement.
SJX’s launch coverage treated the Chronergy escapement as the headline technical change. Monochrome and Robb Report both anchor the 70-hour reserve as the consumer-facing improvement.
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The green-and-black VTNR insert on the 2022 [[Reference:126720VTNR|126720VTNR]] added the fourth colour pair. The green reads as a colour-history callback to the 2007 Fiftieth Anniversary green bezel announcement on the [[Reference:116710LN|116710LN]]. The combination is exclusive to the Destro.
The green-and-black VTNR insert on the 2022 [[Reference:126720VTNR|126720VTNR]] added the fourth colour pair. The green reads as a colour-history callback to the 2007 Fiftieth Anniversary green bezel announcement on the [[Reference:116710LN|116710LN]]. The combination is exclusive to the Destro.


The grey-and-black GRNR insert on the 2023 [[Reference:126713GRNR|126713GRNR]] and [[Reference:126718GRNR|126718GRNR]], and the 2024 steel [[Reference:126710GRNR|126710GRNR]], added the fifth. Rolex describes the grey ceramic colouration as ''gris noir'', the French-language source of the reference code. Monochrome’s launch coverage names the insert the same. The grey half reads near-black in indoor light and shifts toward warm grey in direct sun. Time+Tide’s Sydney-sunlight review captures the bezel behaviour most directly, and Monochrome’s opinion piece builds the “photographs badly, wears well” argument around the same optical property.
The grey-and-black GRNR insert added the fifth modern two-colour Cerachrom pairing. Rolex names the code from ''gris noir''. In practice the grey half often reads almost black indoors and shifts warmer in direct sun, which is why the bezel photographs less clearly than it wears.


The full modern two-colour Cerachrom catalogue now runs across BLNR (blue-black), BLRO (red-blue), CHNR (brown-black), VTNR (green-black), and GRNR (grey-black). Rolex has not released a two-colour red-and-black Coke insert. Robb Report noted the long-rumoured Coke ceramic that collectors had speculated about for years never arrived.
The full modern two-colour Cerachrom catalogue now runs across BLNR (blue-black), BLRO (red-blue), CHNR (brown-black), VTNR (green-black), and GRNR (grey-black). Rolex has not released a two-colour red-and-black Coke insert. Robb Report noted the long-rumoured Coke ceramic that collectors had speculated about for years never arrived.
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