Bergeon 2301 Swiss Clock Mainspring Let Down Tool Methyl Ethyl Ketone 1 Litre mechanical watch works that need

mechanical watch works that need to be winded in one direction only can be tested

Electrostatic Dissipative (ESD) coating helps protect delicate electronic components from static damage

How to use it:

Magnetic: 0～200μT

Bergeon 7718

Bergeon 2301 Swiss Clock Mainspring Let Down Tool Methyl Ethyl Ketone 1 Litre mechanical watch works that needBergeon 2301 Swiss Made Clock Mainspring Let Down Tool Key to let down and wind up clock mainsprings. Contains: 1 chuck holder fitted with a rubber handle 24 numbered chucks with winding squares from No 000 to 21 (1. 75 to 7. 50 mm) Steps of 0. 25 mm 1 special winding chuck for alarm clocks 1 removable metal handle In wooden case