Tachymètre bezel… Omega Speedmaster in automotive world

Speedmaster fans know about the chronograph's debut as the first wrist watch with the Tachymètre scale on the outside of the watch dial as Omega used a metal bezel to add the Tachymètre scale…
But let's start a specific topic on the Omega Speedmaster in the automotive world as I couldn't find one ? 👎
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