So I've been using this thread as a constant reference for a 14393 I just bought that had an incorrect and unsightly crown. Believe it or not, I've come in contact with three different 12 sided scalloped crowns (of course there may be more), and I think only one of them is correct for the 14.XXX watches.
@ConElPueblo's work has been extremely helpful in navigating the process and I am really grateful to him for his research efforts.
The most noticeably incorrect of the scallops is from the 36mm manual wind watches. For reference, here is my 2639 with a scalloped crown that measures in at 5.33-5.5mm depending on how you catch the knurls (which makes a difference for measurement). It is also tall but I have not measured. Given that the tubes and tap size may not even line up with the 14XXX, you may not even be able to install it. Pictures:
The next (IMO incorrect) crown would be the scalloped crown more commonly seen on the 166.020 seamaster deville. Noticeably it has a more pronounced distinction between the middle part to the scallops (if that makes sense). It is only 4.85mm wide and a bit taller than the correct scalloped crown that the difference can be seen:
Finally, our correct crown, the thin profile and scalloped crown. I've found in my search that depending on where the calipers catch it can be between 5.22-5.3mm. It is flatter than the other 2 and can be seen in a comparison from
@ConElPueblo's 3 watches as examples. I'm also showing a side by side with the 2639.
@ahsposo's 14XXX which he posted in this thread:
a profile shot from another watch:
The group shot from
@ConElPueblo's post
elsewhere:
and a comparison with the 2639:
Just trying to add to the body of research... I hope it's okay that I borrowed a lot of different pictures from here and the internet for my shots.
Here is my new-to-me 14393. It came with an unsightly crown. It had to go. I was able to source a correct replacement scalloped crown (miraculously) and in a rather short period of time (luckily). I also had a new OEM crystal fitted:
Again, much of this has been worked out by
@ConElPueblo but I figured I could at least add the measurements and some closer pictures of incorrect ones. Of course this all assumes that you believe the scalloped crown
could be original to the 14XXX series.
Additional thanks to
@cristos71 and
@No Mercy!
Ben