Seamaster 321 - correct dial for a 2451-7?

[Sa Calobra]

Hi everyone, I've been looking for a Seamaster 321 chronograph for a while, and came across this heavily patinated example.

- Serialnr: 15499***, which would put it in 1956
- Reference: 2451-7

I'm waiting for more closeup pictures of the dial. Is there anything to be said based on these pictures below? The Seamaster font seems a bit too fat, but I recall seeing more authentic dials with the same style.
Secondly, would this dial style be correct for a 2451-7? The 2451 reference seems to have been produced for a long time range, with varying dial styles. This one for sure is at the end of the range, but not sure if it ever was produced like this. I've seen a comparable dial layout on a CK2907 from 1958.

(again apologies for the poor quality of pictures - will add more once i get them)

 

[Sa Calobra]

The font reminds me of this one, which has an earlier serial, but is from 1958 https://omegaforums.net/threads/sold-omega-seamaster-chronograph-ref-ck2907-1-cal-321.83687/

 

[Sa Calobra]

here's a better photo

 

[Sa Calobra]

and some more. Case seems sharp, hands corroded, and wrong crown?