I was wondering if anyone knew if replacing the FOIS's case back would make it any slim-er. Are there other official Omega case backs that could thin out the watch, even by a tiny bit? Thanks so much for the help.
I don’t know the answer to your question. While I don’t have the specs of the Speedy Pro vs. FOIS up in front of me, aren’t the thicknesses the same? I haven’t heard of any mods that thin out the Speedy and I’ve owned a few of the last several years.
I currently have a FOIS and I wouldn’t trade this case back for a marginal thickness savings of say 0.5mm or less.
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