265 with a flat hairspring, while it’s supposed to have a Breguet overcoil, you can be sure that it’s a 269 movement with the wrong balance. It’s always good to check that out when looking at a movement.įor example, when you see a cal. The Ranfft movement archive entries for movements of various Omega families list differences between particular movements of a calibre family. Note the absence of “AM” in the markings under the balance. The serial number dates it to 1946 or thereabouts. For example, the 30T2 PC and 30T2 PC AM are both signed 30T2 PC, because the only difference is an anti-magnetic balance in the AM version. Note that various versions of the calibre 30T2 sometimes have a signature of the base calibre, while that’s not necessarily the full calibre number. The 30T2 and its derivatives are a legend in their own right. Speedies have a separate list, compiled by Roman Hartmann, and you can check it here. Note that this list doesn’t apply to Speedmasters. You can find a list of serial numbers for Omega at Chronomaddox, a useful Omega resource created by the late Chuck Maddox. Later on, the serial was always on one of the bridges. In other words, you have to disassemble the watch to access it. In pocket watches from the early 1900s, you can find it on the dial side of the baseplate. Serial numbersĮvery Omega movement has a serial number.
From the late 1940s on, the number was located on one of the bridges, often the same one as the serial number. Omega movements, from the 1930s and 1940s, usually have the calibre number under the balance. If you ask the seller for pictures of the movement, and you get a response like “I can’t” or “I don’t have the tools” or just a plain “no,” it’s best to skip that one. Please don’t buy a vintage watch, let alone an Omega, without having a look at the movement. It was updated and newly published on July 24, 2022. This article was originally published on April 20, 2019. In this article, I’ll show you exactly how to identify a vintage Omega watch. Nevertheless, I’d like to provide some guidelines. With vintage Omegas, it’s anything but easy.
You can buy one with a factory flaw, but that’s out of your hands. However, if you buy a new one from an AD or boutique, the risk of buying a lemon is very low. Both the new and the vintage models are fantastic.
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