Moreover, there isn't a single record for the world's thinnest movement. The 2120/21 is https://zzb.bz/AbOfng link the thinnest full-rotor automatic movement, https://tinyurl.com/43akfn5w link but at 2.23mm the Bulgari BVL 138 Finissimo caliber is the thinnest micro-rotor movement (the rotor sits in the same plane as the movement plate). And then, there are records https://tinyurl.com/223tk2du link for peripheral rotor automatics, as well.

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