I tried this in the Omega forum to no avail, so I thought you guys may be able to tell me what you think.
We got this in an estate (not the watchmaker's estate. This is from a layman) a while back, I'm assuming it's a redial, but I just wanted the opinions of the educated, as I am no expert.
It's got a cal.550 with a serial number that dates it to 1962. Here's some pics, I can take more if you need them to give me info.
EDIT: Sorry for the ridiculously large pics.