DUPLEX
The term refers to any double system. In watchmaking, it most commonly describes a type of frictional rest escapement that was very popular in the 18th and 19th centuries.
Useful link:
– Types of escapements
The term refers to any double system. In watchmaking, it most commonly describes a type of frictional rest escapement that was very popular in the 18th and 19th centuries.
Useful link:
– Types of escapements