I'm sorry if this has already been addressed, but I'm trying to learn how to distinguish original from service pushers for a 145.012 (assuming there is a difference). I understand that the vast, vast majority will be service pushers. But if you know a way to discriminate visually, would you mind explaining? As an example, here is a current eBay listing, which I assume is for service pushers. https://www.ebay.com/itm/Omega-Speedmaster-321-Moonwatch-145-012-145-022-Screw-In-Pushers-100-Original/173285031687?ssPageName=STRK:MEBIDX:IT&_trksid=p2055119.m1438.l2649Purchases made through these links may earn this site a commission from the eBay Partner Network