Rolex Caliber 3285

Rolex Caliber 3285

Rolex Caliber 3285

ManufacturerRolex
Caliber Number3285
Movement TypeAutomatic, self-winding mechanical
In-House?Yes
Diameter28.5mm (needs confirmed)
Jewels31
Total PartsUnknown (please add to comments below)
Power Reserve70 hours
Vibrations Per Hour28,800 (4Hz)
Rotor Winding DirectionBidirectional
Hand-Windable?
Yes
Hand Winding Direction
Clockwise
Balance
Paramagnetic Oscillator
EscapementChronergy
Shock SystemParaflex
HairspringParamagnetic blue Parachrom
FeaturesCentral hours; central minutes; central sweeping seconds; central GMT hand; date at 3:00
Hacking Seconds?
Yes
Country of ManufactureSwitzerland, Swiss made
Known ModelsRolex GMT-Master II (ref: 126710BLRO, 126711CHNR, 126715CHNR, 126720 Lefty, 126713GRNR 18K Gold/Steel Two-Tone, 126718GRNR solid 18K gold), Explorer II (ref: 226570)

Baselworld 2018 Introduction:

The Rolex caliber 3285 was the only new Rolex movement announced at Baselworld 2018.

In Rolex’s own words:

“With 10 patent applications filed over the course of its development, this self-winding mechanical movement is a consummate demonstration of Rolex technology, at the forefront of the art of watchmaking. Calibre 3285 offers fundamental gains in terms of precision, power reserve, resistance to shocks and magnetism, convenience and reliability. Calibre 3285 incorporates the Chronergy escapement patented by Rolex, which combines high energy efficiency with great dependability. Made of nickel-phosphorus, it is also insensitive to magnetic interference.” -Rolex.com

3285 vs 3186:

The new caliber 3285 movement replaces the caliber 3186. It has a larger overall diameter allowing for a larger barrel offering a 70 hour power reserve. The caliber 3285 also has the updated Chronergy escapement allowing for 15% more efficiency as per Rolex claims.

Superlative Chronometer:

Rolex labels the new caliber 3285 as a Superlative Chronometer, claiming that it is two times more precise than an officially certified chronometer with an accuracy of -2/+2 seconds per day “after casing”. Superlative Chronometer is an in-house version of testing that goes beyond COSC parameters.

Lefty GMT-Master II:

The caliber 3285 is also found in the green bezel left-handed (destro) GMT-Master II (Ref: 126720VTNR) that was announced at Watches and Wonders 2022.

GMT-Master II Gold and TT:

At Watches and Wonders 2023 (March 27, 2023), Rolex introduced the Rolesor GMT-Master II (126713GRNR) two-tone in 904L stainless steel and 18K yellow gold, as well as a solid gold version (126718GRNR). Both of these new timepieces are powered by the cal. 3285.

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Charles
Charles
6 years ago

Is this movement anti-magnetic?

Rolando Harris
Rolando Harris
6 years ago
Reply to  Charles

Yes, with the para-whatever-thingamajigs.

Jorge Robles
Jorge Robles
4 years ago
Reply to  Charles

Yes, but not at the level of the Co-Axials than can withstand 15000 gauss and above, even near MRI machines. I know, I have the OSPO Chronograph with the 9900 movement and had a chest MRI done in September 2019, and my watch was in my wrist inside the tunnel, and is still ticking with a + 2 seconds accuracy……

Charles
Charles
4 years ago
Reply to  Jorge Robles

They let you wear it?

Jorge Robles
Jorge Robles
4 years ago
Reply to  Charles

No, the Tech did not know I had it hidden in the blanket I was given to cover my body. When he realized I had it, it was already too late, the scan had finished, and he was kind of crazy about the fact, but there were no alterations to the test, it was a scan of my chest looking for metastatic tumors, and I got my watch, and it was and is working. It is an Omega Seamaster Planet Ocean Chrono with the 9900 caliber in a rubber strap. I am happy for me….

Kai Barros
Kai Barros
4 years ago
Reply to  Jorge Robles

Sorry for being completely off topic, but if the Omega co-axials can withstand 15’000 gauss even in the 9900, then does that make the 8508 a gimmick?

Jorge Robles
Jorge Robles
4 years ago
Reply to  Kai Barros

No, All Omega 85XX movements are resistant to 15000 gauss, actually they were the first META Certified at that level. They include manual hand wound and the automatic movements. Omega 93XX and 99XX are Automatic Chronograph movements. The 85XX so far does not include chronographs, only chronometers. My question is, Why an 8508 is a Gimmick? Which is your argument or point for the question?

Hucuuf
Hucuuf
4 years ago
Reply to  Jorge Robles

That’s awesome

Ken
Ken
3 years ago
Reply to  Jorge Robles

LOL, you wore a watch in an MRI machine? Sure….. but please inform yourself of how things work before fabricating such an outlandish claim!

Eric Wadsworth
Eric Wadsworth
1 year ago
Reply to  Ken

(I’m EXTREMELY skeptical about someone bringing a watch into an MRI machine. That sort of thing is not only likely to kill the person in there with it, but also to do massive damage to the machine, and possibly even injure the operators.)

Geoffroy Dupont
Geoffroy Dupont
2 years ago
Reply to  Charles

My Seagull ST1612 calbre can withstand this rolex mvt. 3285’s longevity anytime, no sweat over this actually.

Geoffroy Dupont
Geoffroy Dupont
2 years ago

I’m a Swiss citizen without the COSC and other swiss cr*p tunnel vision.

David Larry
David Larry
6 years ago

The rotor looks cool. I wish Rolex made watches with open case backs. Don’t you?

Rolando Harris
Rolando Harris
6 years ago
Reply to  David Larry

No, then it wouldn’t be an Oysterproof.

Christopher
Christopher
1 year ago
Reply to  Rolando Harris

Omega super deep

Christophe
Christophe
6 years ago

Is it worth 10 grand??

john saffas
john saffas
6 years ago
Reply to  Christophe

It is a very good watch. It is not worth ten grand for the name!

Robbie M.
Robbie M.
5 years ago

You can now hear the rotor as they have done away with bushings. The bearings need to be worn in after about a 3 month period. All mt other Rolex’s were silent, so this put me off a bit initially. New Pepsi GMT Master II BLRO. Now I love this watch. In the four months I have had it, it has gained 14 seconds. That is pretty impressive for a mechanical watch.

Sebastian
Sebastian
4 years ago
Reply to  Robbie M.

So great to read your post… I just receive my new batman with the 3285 movement and the rotor noice was driving me crazy…. Compare with my hulk that is super quiet… Now I feel good about it.. New movement a little bit more noice just that

Maikel
Maikel
3 years ago
Reply to  Robbie M.

So the noise of the router will go away?

Jean du Moulin
Jean du Moulin
2 years ago
Reply to  Maikel

@Maikel, the sound will become less after circa 4 months, as Robbie M. stated. However, the ball bearings will still be producing a minor soundlevel, that is proof of them working properly. You’ll get used to the low soundlevel when they are performing their purpose.

GEORGE JOSEPH
GEORGE JOSEPH
4 years ago

Does the 3285 have the Paraflex protection? Its not mentioned on the Rolex page for the GMT II but is on the Explorer II page.

Jorge Robles
Jorge Robles
4 years ago
Reply to  GEORGE JOSEPH

Yes, you can see it very clearly in the picture, together with the blue-parachrom hairspring. The movement is antimagnetic, but not a the level of the newer Co-axials. The new 3235 and derivatives are about the same level to this one, maybe a little bit better.

janusz
janusz
3 years ago

i have 3 rolxe

trackback
Rolex Pepsi GMT Master 2 126710 BLRO Review - FIFTH WRIST
3 years ago

[…] Pepsi also received Rolex’s newest movement, the 3285. The big change here was an increase to 70 hrs power reserve. This really is a welcome improvement. […]

trackback
Rolex GMT-Master II Pepsi Meteorite 126719BLRO Review - FIFTH WRIST
3 years ago

[…] for the movement, it comes with the 3285 calibre with 70 hours power reserve – within my acceptable […]

trackback
Rolex GMT-Master II 126710 BLNR Batgirl Review - FIFTH WRIST
3 years ago

[…] from the 116710BLNR, the movement has been given an upgrade with the in-house made caliber 3285 automatic movement that comes with a power reserve of 70 hours – an upgrade from the older caliber 3186 […]

trackback
Top 5 - New Rolex Releases 2021 - FIFTH WRIST
3 years ago

[…] reference 226570 in both Polar and Black dial. Updating them from the 3187 movement to the latest 3285 Rolex manufacture movement giving it a boost from 48 hours of power reserve to a far healthier 70 hours. Otherwise the size […]

steve
steve
2 years ago

just ordered my lefty GMT

Caesar95
Caesar95
1 year ago

This is badass! (Typed this with my shiny $21,000 Rolex GMT Master-II BLRO on my left wrist)

G.4
G.4
1 year ago

Hi, just a minor revision request to this article: the rolex 3285 movement is also used in the Rolex Explorer II 226570 (newest model). Your article states that it is only used in the newest GMT Master II models. According to Rolex’s own website, it is also used in the new Explorer II. Thanks for the great resources on this site!

Joshua Patrick
Joshua Patrick
4 months ago

Very informative specs and a must buy. Keep up the great work.

Joshua Patrick
Joshua Patrick
4 months ago

This is a must have and it’s a great choice for individuals that have a great since style. #perpetual

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