escapement

noun

es·​cape·​ment i-ˈskāp-mənt 

1

a

: a device in a timepiece which controls the motion of the train of wheelwork and through which the energy of the power source is delivered to the pendulum or balance by means of impulses that permit a tooth to escape from a pallet at regular intervals

b

: a ratchet device (such as the spacing mechanism of a typewriter) that permits motion in one direction only in equal steps

2

a

: the act of escaping

b

: a way of escape : vent

Illustration of escapement

• escapement 1a

Examples of escapement in a Sentence

Recent Examples on the Web

The boutique’s location in Silicon Valley allows the watch brand to boast about its use of silicon for the escapement of the first Freak timepiece in 2001 and for nearly all their watches since. —Anthony Demarco, Forbes, 20 Mar. 2025

The Millennium is a watch developed by George in celebration of this momentous occasion, using the Omega movements to employ his escapement. —Allen Farmelo, Robb Report, 26 Dec. 2024

Though showing off the works of a watch isn’t a new thing—Breguet famously built pocket watches that exposed the gear train and escapement—the practice really took off during the mechanical watch revival of the 1980s and ’90s. —Blake Buettner, Robb Report, 22 Nov. 2024

Among the movements horological enhancements are two escapement wheels that provide a direct impulse to the balance for improved efficiency, stability and a longer power reserve. —Carol Besler, Robb Report, 23 Oct. 2024

Word History

First Known Use

1779, in the meaning defined at sense 1a