Do all 1950s Seamasters w/Date at 3 say "Calendar" on the dial?

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Considering this purchase, but wondering about the missing designation . . .

 
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You can google the ref # to see some comparables
 
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Why are you sure that is a 1950s Seamaster?
Edited:
 
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Why are you sure that is a 1950s Seamster?
It's advertised as such, but I think it's actually a 1960, 562 cal., case 14701. I just haven't seen pix of the movement yet, but didn't want to bother asking if I could cross it off on the basis of the dial alone!
Edited:
 
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It's advertised as such, but I think it's actually a 1960, 552 cal., case 14701. I just haven't seen pix of the movement yet, but didn't want to bother asking if I could cross it off on the basis of the dial alone!
I too think it is early 1960s hence my question. The lack of the Calendar text therefore isn't an issue.
 
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552 is a no calendar movement
Typo, 562 (fixed now). That's what I get for trying to mark essays and post on OF while a 3-year old is yelling "the car crashed!" in my ear (we've been watching Le Mans highlights together and, like many neophyte race-fans, he is _all_ about the crashes).
 
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But I’ve just read @Dr.Sacha's earlier post in which he says it’s a 562 movement, which does have a date.
 
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But I’ve just read @Dr.Sacha's earlier post in which he says it’s a 562 movement, which does have a date.
The magic of editing :/