iwc schaffhausen 1940's winding

Greetings
to you

i would like to ask you about this watch about the crown and the case ? and
can you bring the details from the number written in the case back ' 1312646 '
thanks in advance

Looks like a ref 500 from here, with a replacment dial (??) And movement &
case numbering not closely paired. The crown is by the by.

Hi RISHTAIWI,

the case number leads to a production date in 1954. The movement is a Caliber
89. Can you tell us the exact movement number, i cannot read it from the image
posted.

br

Cromagnonman

Hi Rishtaiwi,

Nice watch, not a reference 500 as stated above. The ref 500 has a 852
movement and a monocoque case (the case opens only at the front). I should
know, I have one...

Best regards,

Henrik

Pardon me 527

( though calatrava cased c.89s with 13xx range are never ref marked- olde boys
say ref500)