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Jacob & Co. · AS310.21.AA.AB.A

Astronomia Solar Zodiac Full Black DLC Titanium

The escapement in slow motion

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Jacob & Co. Astronomia Solar Zodiac Full Black DLC Titanium AS310.21.AA.AB.A
28,800 vph, 4 Hz, 8 beats a second
Speed

One tick

125 ms, slowed to 12.5 s7.1 ms of it in the lift
Step through a beat

Escapement, in the lexicon