Breitling uses their Calibre 41 in Montbrillant Chronograph

[BobM]

Is that a Breitling finished ETA 2894?

[anton]

Is that a Breitling finished ETA 2894?

I'm going to go on a limb and say that it is, since it's the same layout. But, the standard 2894 has 37 jewels, whereas the Montbrillant has 41. What the difference is is beyond me.

[BobM]

Recent findings among authoritative sources specify the Brietling Calibre 41 is based on the ETA 2892-A2.

[anton]

Recent findings among authoritative sources specify the Brietling Calibre 41 is based on the ETA 2892-A2.

...but the ETA 2894's base movement is also the 2892. It's just simply a chronograph module placed on top.