It was my one timepiece collection.

 

Was ?

Anyway, it looks weird..

 

Dial doesn't seem right to me...

Did you buy that watch as "all original"?

 

The seller said it was original dial. I have other 2 like this, but they were Goldfilled and goldplate type. Thank you for your recommendation and value mention to me.@gop76

 

I'm skeptical that either of those city discs are original.

 

Count me as being in the same camp as Tony and the others. Regular Memovoxes are often redialed as these to fetch more money. You might need to contact Richemont / JLC with the serial numbers and pictures of the internals to be sure they came from LeSentier as World Timer models.

 

It was explained to me that on the world time the diameter cutout on the outer dial was much larger than the ones on the pictures shown above. I looked it up in Zaf basha's book and indeed you can see that the cutout goes all the way out to the date cutout leaving no room for hour marker at 3:00. see attached picture
The book also said the world time was observed (key word) only on the srewback case ref E856 using the manual wind caliber 814 and the snapback case ref 3160. Caution is advised for case ref other than the E856 and 3160

 

Thank you @JohnLy

 

Interesting. The Memovox Parking also has a larger aperture for the central disk. It was associated with case references 3161 and E856 (below).

 

Thank you all. This Memovox is also large central disk together.