JoinSign in
New moon

Watch news and tools for
collectors and the curious.

Tissot · T137.907.97.201.00

PRX Carbon 40.5mm

The escapement in slow motion

Light a part
Tissot PRX Carbon 40.5mm T137.907.97.201.00
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