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Jacob & Co. · SN800.30.BD.UJ.A

Mystery Tourbillon Full Icy Blue Sapphires (White Gold)

The escapement in slow motion

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Jacob & Co. Mystery Tourbillon Full Icy Blue Sapphires (White Gold) SN800.30.BD.UJ.A
21,600 vph, 3 Hz, 6 beats a second
Speed

One tick

167 ms, slowed to 16.7 s9.5 ms of it in the lift
Step through a beat

Escapement, in the lexicon