Okey maybe not pushers but the 145.022 crown.
I already asked this question few years ago to a well know and famous book author about speedy, and i think the answer was SP = Special band That was for speedy sold on leather or non-metal band.... but i am not really sure about his answer...should ask him again 😀
Yes, as I've already said parts can be used on different case references. This is common across many Omega products, so not at all unusual. You seem to be drawing some specific conclusion from this, and I am not clear what that is. I have read all the posts you have made...
I am only trying to find out the difference in the two cases . Maybe i am wrong in the most i write but we are getting a discussion about it ? That is how i work things out . If i am wrong i ask an other question and learn something from it . We are trying to find out what is "special" about the SP cases .
SP is special pushers as confirmed by others. Also called out as such by mwo.
Here is an oddball dual marked 105.012-66 CB with 145.012SP added.
HF stands for Huguenin Frères, the casemaker