24
*
The Elinvar brand does not belong to Jaeger-LeCoultre.
10
9
2
1
11
3
6
4
7
5
8
1
Expansion chamber
2
Brass cover
3
Balance spring (counterweight)
4
Small chain
5
Mainspring
6
Pulley
7
Return spring
8
Balance wheel
9
Elinvar
®
*
wire
10
Escapement
11
Winding spring