Can anyone identify this Minerva movement.

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Hi all,

Can anyone identify this Minerva movement?



I doubt it is one of their in house movements.

I am trying to find a new stem and crown and identifying the movement will help me to that end.

Thank you to all who view.
Edited:
 
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ETA 735 ?



Edit to add... beaten, and with a better answer 馃う
 
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Thank you to "fallout boy" and an honorable mention to "w154".
 
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I was counting wrong above : I meant the (total) 5 rubis...