They’re called IIRC aiguilles “a feuilles revidees” which essentially means “hollowed leaf” hands.
Below one of mine.
To me, the sub-dial and signature look good. I find the edges of the sub-dial difficult to assess based on the photo available. As for the white and grainy texture, this does appear on some dials from the period. Here is one of mine:
I like the descriptive romance of the name "hollowed leaf"
Hi DD12 and thank you. Yes, you are right, Baume, 12.68Z, 1937. I did contact Longines, see below. It's such a good case too with the swing lugs, screw on case back and bezel, it survives better in stainless steel than in silver I think.
The original serial number 5'505'952 identifies a wristwatch in stainless steel. It is fitted with a Longines manually wound mechanical movement, caliber 12.68Z and was invoiced on 16 October 1937 to the company Baume, which was at that time our agent for the United Kingdom.
You’ll note the edges on this subdial are comparable to the edges on the OP watch- yet I don’t think there’s a debate your dial is original, and personally I have no problem with the subdial on the OP watch.
The third example you posted is a picture from Adriano Davidoni’s website (but which he credited to someone else) and those soft edges I must admit have puzzled me, but I’ve seen another similar example- unless of course it wss the same watch which has changed hands, which is quite possible too.
You’ll note the edges on this subdial are comparable to the edges on the OP watch- yet I don’t think there’s a debate your dial is original, and personally I have no problem with the subdial on the OP watch.
Back to the design of the sub-dial, below is a comparison with a watch that I posted in 2017 here: https://omegaforums.net/threads/another-balaclava-1930s-longines.54610/ At the time, I questioned the sub-dial design. Now, I think that the dial is probably original. It is interesting to note that the gap, which @Modest_Proposal highlighted on the left dial, is quite a bit smaller on the right dial. Also, the twelve lines of the sub-dial look to be of the same thickness.
To linger on the topic of sub-dial edge sharpness and originality, I think we both agree that original dials usually have sharp sub-dial edges. I think we also agree that the dial in question has pretty sharp edges. Following from that, one question that arises is, are there redials with sharp edges? I think that the answer is yes. Below is an example of a disclosed redial found here: https://www.lorologiese.com/en/home...4-sector-dial-1951-steel-watch-cal-1268z.html
Obvious similarities, and it is interesting to note that there appears to be a gap around the sub-dial like that of the watch in question.
Just to clarify, I believe that the gap that was mentioned by @Modest_Proposal was this one:
The fact a top redialer in 2021 is capable of creating sharp subdial edges doesn’t mean that’s how redials were done 70 years or 80 years ago.
So the notion that “redials can have sharp edges” cannot be based on such an example if we’re discussing a dial from another period altogether, instead of a brand new and high quality repaint job.