I recently purchased this 2580-1/2505 Jumbo Omega, cal. 265 from 1947/48.

It is a nice size with 38,35 mm. without the crown and as far as i can see an original dial (a lot of the jumbo's have redone dials)

But i was wondering if this reference is a little bit unusual/rare? i have only found a few ref. 2580-1/2505. The ref. 2505 seems common.

 

Very nice indeed

 

Very tidy that's for sure. Hard to say the model because they were both jumbo subseconds.