Breitling Caliber B17

Breitling Caliber 17

Breitling Caliber B17

Brand Breitling
Caliber Number 17, B17
In-House?
No
Base Caliber
ETA 2824-2 or Sellita SW200-1
COSC?
Yes
Movement Type
Automatic, self-winding mechanical
Lignes
11.5”’
Diameter 25.6mm
Height 4.6mm
Power Reserve ~38 hours
Content Credit
calibercorner.com
Jewels 25 or 26 (see below)
Vibrations Per Hour
28,800 bph, 4Hz
Lift Angle
50 degrees
Shock Protection Incabloc
Regulator Etachron
Rotor Type
Ball bearing
Rotor Winding Direction
Bi-directional
Hand-Windable?
Yes
Hand Winding Direction
Clockwise
Functions Central hours; central minutes; central sweeping seconds; date at 3:00 (could be different depending on the date window cutout on the dial)
Hacking Seconds? Yes
Country of Manufacture Switzerland, Swiss made
Known Models
SuperOcean, SuperOcean Steelfish, SuperOcean Pro, SuperOcean 42, SuperOcean 44, SuperOcean Heritage, Avenger Blackbird, Avenger Seawolf, Colt Auto, Colt Ocean Auto, Shark Auto,  (Add your watch in the comments below…)

The Breitling caliber 17 (sometimes called Breitling Calibre B17) is found in many automatic Breitling watches.

Is the B17 and in-house movement?

Beginners to the watch game often mistake movements like the cal. B17 (aka Breitling 17) for being an in-house movement because a brand designated caliber number can be misleading to those not in the know.

The B17 is not an in-house movement. It is basically a COSC grade (read more about grades) ETA 2824-2 or Sellita SW200-1 with a Breitling branded rotor.

Although not designed and manufactured by Breitling, this caliber is said to be assembled and regulated in-house (perhaps finished as well).

In Breitling’s own words:

“Automatic time-only movement supplied by either ETA or Sellita.”

How to tell which base movement it is?

Since Breitling uses the same caliber number (17) for the movement whether it is based on an ETA or Sellita, it is what Caliber Corner calls a “Forrest Gump” movement.

If you want to know which base calibre powers your SuperOcean or Avenger, the easiest way to tell is the jewel count. The ETA has 25, the Sellita has 26.

Additional Resources:

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Community Reviews & Questions:

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For off topic or general watch questions, post in the Caliber Corner Forum.

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seth
seth
1 year ago

thanks for this

Shu
Shu
1 year ago

Thanks for the info. Hate brands trying to smoke buyer by simply give it their own name but was actually ETA.

Jacco
Jacco
1 year ago

I can’t believe that Breitling still uses ETA in their fairly high priced range.
It’s one of the reasons I stay away from Breitling.

Bogdan
Bogdan
6 months ago
Reply to  Jacco

this is not a simply ETA mechanism but rather a modified one by Breitling.
It is even more than a COSC caliber, but they added top materials in the mecanism.

VWatchie
VWatchie
1 year ago

The fact that Breitling uses a chronometer-certified movement manufactured by ETA means clear advantages for us consumers. On the one hand, we get a movement that is extremely reliable and has stood the test of time, and it also makes us less dependent on Breitling because we can then choose who will service our watch ourselves, usually at a significantly lower cost. With an in-house movement, their watches would cost significantly more, and service would likely take twice as long and cost a lot more.

TheWatcher
TheWatcher
10 months ago

The B17 movement is not from ETA anymore. It’s a sellita sw 200. ETA 2824 – 25 Jewels, B17/SW200 26 jewels

mcmikey
Member
5 months ago

I recently purchased the new time only Avenger 42mm (2023). It took over a month for the movement to “settle in”, giving some wild variations while it did. So much so that I contacted Breitling to send it in for a check up but by the time I had finished filling in their “accuracy diary” it has settled to an average of -0.7spd. Still with some wild swings at the weekend though which I manage to correct for overnight.

Robert
Robert
4 months ago
Reply to  mcmikey

I’m looking at getting this watch. We’re you able to get a discount at the AD?

mcmikey
Member
4 months ago
Reply to  Robert

No – I bought it from Breitling online.

Robert
Robert
4 months ago
Reply to  Mike Carpenter

No worries. Enjoy the watch!

Ed Teran
Ed Teran
15 days ago
Reply to  Robert

Jomashop has them with a good discount. FYI.

Robert
Robert
15 days ago
Reply to  Ed Teran

Thanks for your reply. Just got mine recently for 20% discount. Fantastic watch. Much prefer the design language over Tudor.

Krister
Krister
5 months ago

Navitimer 8

Pavel
Pavel
4 months ago

Navitimer 41

David Wootton
David Wootton
3 months ago

There’s a non-automatic Breitling No. 17 movement in c.1950 stopwatches.

Craig
Craig
1 month ago

This site is a great resource. I wish I checked CC before I took my Colt Ocean into a Breitling store to get it serviced by them last year, as I now know it’s probably a Sellita movement that could have been serviced by a local watchmaker for far less cost and time than through Breitling. One small consolation- I hadn’t had the need to service it in 25 years of owning it. So,,,

Ed Teran
Ed Teran
15 days ago

The 36mm Navitimer also has this movement. And it burns my chaps when the in-house wave surfers wanna talk trash about ETA movements (read the other comments for an explanation studs), let us not forget that even The Crown used it in the past before they got too big for their own breeches. Sheeeeet

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