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| Joined: | Thu Mar 26th, 2009 |
| Location: | Colorado USA |
| Posts: | 10254 |
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Will - you are correct buddy, an Omega 1120 caliber inside (As I'm sure you already know, Omega starts with the base ebauche from one of my favorite ETA movements...the 2892-A2 for the 1120, and makes some significant enhancements to yield the chronometer grade 1120).
Yes Chris, I've been putting my nose in the 1120 and 2500 mvts.
The 1120 is very similar to the 2892-2 but the 2500 a,b,c generation is even more modified and don't have the same size as the 2892-2 at all.
Yes...the coaxial escapement of the 2500 is indeed a different beast (and a nice big step toward what would be considered the perfect design point). From what I understand, with the 1120 calibre, Omega adds two jewels to make it a 23 jewel movement, rhodium plating, and some other modifications (that I'm not too clear on) to improve the durability and precision.