Which version is this Noob 111?

[nlnlnlnene]

I'm trying to decide whether I should buy this from a forum member or not.
He says that it is Noob M version.

Serviced by a local watchsmith for $300 for rep brown leather strap + $80 for black gen leather strap.

But what I cannot tell is what is different from this vs. the latest Noob N version people are talking about.

There are apparently multiple batches in the M version too so I don't know if this is the one that has the better CG, single-AR instead of double-AR.

 

[cwazy1]

Don't have a definitive answer, can't see the serial number

 

[nlnlnlnene]

Where would the serial be?

 

[WatchnScotch]

On the case back.

 

[nlnlnlnene]

Where on the caseback?

 

[karesz501]

On the outer rim, like M###/####. And some better quality pics would help....
I had 2 M series 111, they are very well made and GEN like watches. I'd say its a bargain for therice if you need the straps, if not try to buy the watch head only for less.